./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Continue1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Continue1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 64bit --witnessprinter.graph.data.programhash 8d665fd3f3168df1350ae63676f0c958ae0f0575 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:55:08,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:55:08,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:55:09,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:55:09,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:55:09,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:55:09,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:55:09,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:55:09,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:55:09,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:55:09,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:55:09,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:55:09,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:55:09,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:55:09,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:55:09,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:55:09,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:55:09,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:55:09,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:55:09,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:55:09,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:55:09,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:55:09,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:55:09,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:55:09,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:55:09,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:55:09,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:55:09,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:55:09,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:55:09,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:55:09,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:55:09,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:55:09,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:55:09,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:55:09,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:55:09,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:55:09,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:55:09,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:55:09,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:55:09,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:55:09,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:55:09,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:55:09,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:55:09,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:55:09,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:55:09,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:55:09,043 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:55:09,043 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:55:09,043 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:55:09,043 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:55:09,043 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:55:09,043 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:55:09,043 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:55:09,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:55:09,044 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:55:09,045 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:55:09,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:55:09,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:55:09,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:55:09,045 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:55:09,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:55:09,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:55:09,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:55:09,046 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:55:09,046 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:55:09,046 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_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d665fd3f3168df1350ae63676f0c958ae0f0575 [2019-12-07 18:55:09,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:55:09,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:55:09,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:55:09,157 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:55:09,157 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:55:09,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/java_Continue1.c [2019-12-07 18:55:09,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/data/c5879da6e/771946ad801c4e2482e9ed68018abcf5/FLAG65e1815cd [2019-12-07 18:55:09,598 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:55:09,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/sv-benchmarks/c/termination-restricted-15/java_Continue1.c [2019-12-07 18:55:09,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/data/c5879da6e/771946ad801c4e2482e9ed68018abcf5/FLAG65e1815cd [2019-12-07 18:55:09,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/bin/uautomizer/data/c5879da6e/771946ad801c4e2482e9ed68018abcf5 [2019-12-07 18:55:09,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:55:09,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:55:09,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:09,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:55:09,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:55:09,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea3a7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09, skipping insertion in model container [2019-12-07 18:55:09,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:55:09,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:55:09,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:09,741 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:55:09,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:09,793 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:55:09,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09 WrapperNode [2019-12-07 18:55:09,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:09,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:09,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:55:09,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:55:09,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:09,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:55:09,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:55:09,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:55:09,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... [2019-12-07 18:55:09,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:55:09,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:55:09,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:55:09,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:55:09,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:55:09,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:55:09,948 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:55:09,948 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 18:55:09,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:09 BoogieIcfgContainer [2019-12-07 18:55:09,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:55:09,950 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:55:09,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:55:09,952 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:55:09,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:55:09,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:55:09" (1/3) ... [2019-12-07 18:55:09,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19c6117f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:55:09, skipping insertion in model container [2019-12-07 18:55:09,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:55:09,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:09" (2/3) ... [2019-12-07 18:55:09,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19c6117f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:55:09, skipping insertion in model container [2019-12-07 18:55:09,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:55:09,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:09" (3/3) ... [2019-12-07 18:55:09,955 INFO L371 chiAutomizerObserver]: Analyzing ICFG java_Continue1.c [2019-12-07 18:55:09,983 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:55:09,983 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:55:09,983 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:55:09,984 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:55:09,984 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:55:09,984 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:55:09,984 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:55:09,984 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:55:09,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 18:55:10,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:55:10,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:10,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:10,008 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:55:10,009 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:55:10,009 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:55:10,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 18:55:10,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:55:10,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:10,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:10,010 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:55:10,010 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:55:10,014 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~c~0;havoc main_~i~0;havoc main_~c~0;main_~i~0 := 0;main_~c~0 := 0; 3#L12-2true [2019-12-07 18:55:10,015 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~i~0 < 20);main_~i~0 := 1 + main_~i~0; 6#L12true assume main_~i~0 <= 10; 3#L12-2true [2019-12-07 18:55:10,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,018 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:55:10,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077118794] [2019-12-07 18:55:10,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,084 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-12-07 18:55:10,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706614967] [2019-12-07 18:55:10,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,094 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,095 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-12-07 18:55:10,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477198470] [2019-12-07 18:55:10,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,103 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:10,137 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:55:10,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:55:10,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:55:10,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:55:10,138 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:55:10,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:55:10,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:55:10,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:55:10,138 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1.c_Iteration1_Loop [2019-12-07 18:55:10,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:55:10,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:55:10,153 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 18:55:10,160 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 18:55:10,164 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 18:55:10,212 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:55:10,212 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:55:10,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:55:10,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:55:10,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:55:10,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:55:10,234 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:55:10,234 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:55:10,238 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:55:10,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:55:10,376 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:55:10,377 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:55:10,378 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:55:10,378 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:55:10,378 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:55:10,378 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:55:10,378 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:55:10,378 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:55:10,378 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:55:10,378 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1.c_Iteration1_Loop [2019-12-07 18:55:10,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:55:10,378 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:55:10,380 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 18:55:10,383 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 18:55:10,386 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 18:55:10,420 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:55:10,423 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,427 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 18:55:10,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:55:10,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:55:10,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:55:10,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:55:10,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:55:10,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:55:10,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,441 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 18:55:10,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:55:10,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:55:10,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:55:10,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:55:10,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:55:10,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:55:10,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,455 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 18:55:10,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:55:10,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:55:10,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:55:10,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:55:10,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:55:10,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:55:10,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:55:10,460 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:55:10,463 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:55:10,463 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:55:10,470 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:55:10,470 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:55:10,470 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2019-12-07 18:55:10,473 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:55:10,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:10,499 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:55:10,500 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:55:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:10,506 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:55:10,507 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:55:10,523 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 18:55:10,533 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 18:55:10,534 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-12-07 18:55:10,576 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2019-12-07 18:55:10,576 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 18:55:10,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:55:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-12-07 18:55:10,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 18:55:10,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:55:10,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 18:55:10,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:55:10,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 18:55:10,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:55:10,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-12-07 18:55:10,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:55:10,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2019-12-07 18:55:10,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 18:55:10,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 18:55:10,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-12-07 18:55:10,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:55:10,587 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-12-07 18:55:10,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-12-07 18:55:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-12-07 18:55:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 18:55:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 18:55:10,604 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 18:55:10,604 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 18:55:10,605 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:55:10,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 18:55:10,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:55:10,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:55:10,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:55:10,606 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:55:10,606 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:55:10,606 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~c~0;havoc main_~i~0;havoc main_~c~0;main_~i~0 := 0;main_~c~0 := 0; 76#L12-2 assume !!(main_~i~0 < 20);main_~i~0 := 1 + main_~i~0; 72#L12 [2019-12-07 18:55:10,606 INFO L796 eck$LassoCheckResult]: Loop: 72#L12 assume !(main_~i~0 <= 10);main_~c~0 := 1 + main_~c~0; 71#L12-2 assume !!(main_~i~0 < 20);main_~i~0 := 1 + main_~i~0; 72#L12 [2019-12-07 18:55:10,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 18:55:10,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725409208] [2019-12-07 18:55:10,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,613 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-12-07 18:55:10,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136283439] [2019-12-07 18:55:10,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:10,621 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:10,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,621 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-12-07 18:55:10,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:10,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101473222] [2019-12-07 18:55:10,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:55:10,650 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101473222] [2019-12-07 18:55:10,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:55:10,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:55:10,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348355635] [2019-12-07 18:55:10,667 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:55:10,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:55:10,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:55:10,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:55:10,667 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:55:10,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:55:10,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:55:10,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:55:10,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1.c_Iteration2_Loop [2019-12-07 18:55:10,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:55:10,667 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:55:10,668 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 18:55:10,671 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 18:55:10,677 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 18:55:10,679 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 18:55:10,725 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:55:10,725 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:55:10,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:55:10,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:55:10,732 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:55:10,736 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:55:10,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:55:10,747 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:55:10,748 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:55:10,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:55:10,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:55:10,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:55:10,748 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:55:10,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:55:10,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:55:10,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:55:10,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1.c_Iteration2_Loop [2019-12-07 18:55:10,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:55:10,749 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:55:10,749 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 18:55:10,756 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 18:55:10,758 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 18:55:10,760 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 18:55:10,798 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:55:10,798 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,801 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 18:55:10,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:55:10,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:55:10,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:55:10,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:55:10,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:55:10,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:55:10,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:55:10,807 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:55:10,814 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:55:10,814 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f489a09-518b-43e5-8e84-5d42f6851fb9/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 18:55:10,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:55:10,820 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:55:10,820 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:55:10,820 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 39 Supporting invariants [] [2019-12-07 18:55:10,822 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:55:10,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:10,842 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:55:10,842 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:55:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:10,846 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:55:10,846 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:55:10,847 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 18:55:10,847 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:55:10,847 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 18:55:10,856 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2019-12-07 18:55:10,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:55:10,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:55:10,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-12-07 18:55:10,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 18:55:10,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:55:10,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 18:55:10,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:55:10,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 18:55:10,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:55:10,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-12-07 18:55:10,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:55:10,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-12-07 18:55:10,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:55:10,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:55:10,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:55:10,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:55:10,859 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:55:10,859 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:55:10,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:55:10,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:55:10,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:55:10,862 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-12-07 18:55:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:55:10,864 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 18:55:10,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:55:10,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 18:55:10,864 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:55:10,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:55:10,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:55:10,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:55:10,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:55:10,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:55:10,865 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:55:10,865 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:55:10,865 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:55:10,865 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:55:10,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:55:10,865 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:55:10,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:55:10,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:55:10 BoogieIcfgContainer [2019-12-07 18:55:10,869 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:55:10,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:55:10,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:55:10,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:55:10,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:09" (3/4) ... [2019-12-07 18:55:10,872 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:55:10,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:55:10,873 INFO L168 Benchmark]: Toolchain (without parser) took 1259.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 942.5 MB in the beginning and 930.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:10,874 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:10,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:10,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.29 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 18:55:10,875 INFO L168 Benchmark]: Boogie Preprocessor took 11.86 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 18:55:10,875 INFO L168 Benchmark]: RCFGBuilder took 122.49 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 18:55:10,876 INFO L168 Benchmark]: BuchiAutomizer took 919.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 936.1 MB in the end (delta: 140.3 MB). Peak memory consumption was 140.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:10,876 INFO L168 Benchmark]: Witness Printer took 2.63 ms. Allocated memory is still 1.1 GB. Free memory was 936.1 MB in the beginning and 930.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:10,879 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.29 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 11.86 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 122.49 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 919.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 936.1 MB in the end (delta: 140.3 MB). Peak memory consumption was 140.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.63 ms. Allocated memory is still 1.1 GB. Free memory was 936.1 MB in the beginning and 930.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 19 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 39 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 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 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 13 SDslu, 9 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax191 hnf98 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 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...