./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.15.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/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 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:38:09,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:38:09,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:38:09,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:38:09,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:38:09,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:38:09,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:38:09,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:38:09,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:38:09,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:38:09,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:38:09,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:38:09,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:38:09,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:38:09,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:38:09,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:38:09,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:38:09,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:38:09,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:38:09,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:38:09,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:38:09,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:38:09,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:38:09,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:38:09,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:38:09,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:38:09,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:38:09,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:38:09,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:38:09,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:38:09,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:38:09,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:38:09,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:38:09,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:38:09,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:38:09,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:38:09,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:38:09,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:38:09,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:38:09,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:38:09,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:38:09,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 04:38:09,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:38:09,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:38:09,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:38:09,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:38:09,929 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:38:09,930 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 04:38:09,930 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 04:38:09,930 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 04:38:09,930 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 04:38:09,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 04:38:09,931 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 04:38:09,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:38:09,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:38:09,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:38:09,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:38:09,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 04:38:09,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 04:38:09,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 04:38:09,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:38:09,933 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 04:38:09,933 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:38:09,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 04:38:09,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:38:09,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:38:09,934 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 04:38:09,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:38:09,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:38:09,935 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 04:38:09,935 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 04:38:09,936 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_ac74a69e-2035-4fe3-a38f-aae0421acdff/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 -> 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 [2019-11-20 04:38:10,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:38:10,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:38:10,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:38:10,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:38:10,151 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:38:10,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.15.c [2019-11-20 04:38:10,221 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/data/4dc7963c1/f9867b68923f428cbfeaa1eb7182922b/FLAG166fc77c5 [2019-11-20 04:38:10,645 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:38:10,646 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/sv-benchmarks/c/termination-restricted-15/b.15.c [2019-11-20 04:38:10,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/data/4dc7963c1/f9867b68923f428cbfeaa1eb7182922b/FLAG166fc77c5 [2019-11-20 04:38:11,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/data/4dc7963c1/f9867b68923f428cbfeaa1eb7182922b [2019-11-20 04:38:11,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:38:11,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:38:11,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:38:11,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:38:11,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:38:11,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37194310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11, skipping insertion in model container [2019-11-20 04:38:11,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:38:11,060 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:38:11,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:38:11,206 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:38:11,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:38:11,307 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:38:11,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11 WrapperNode [2019-11-20 04:38:11,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:38:11,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:38:11,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:38:11,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:38:11,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:38:11,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:38:11,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:38:11,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:38:11,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... [2019-11-20 04:38:11,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:38:11,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:38:11,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:38:11,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:38:11,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:38:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:38:11,566 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:38:11,566 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 04:38:11,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:38:11 BoogieIcfgContainer [2019-11-20 04:38:11,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:38:11,568 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 04:38:11,568 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 04:38:11,572 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 04:38:11,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:38:11,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 04:38:11" (1/3) ... [2019-11-20 04:38:11,574 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24e7948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:38:11, skipping insertion in model container [2019-11-20 04:38:11,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:38:11,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:11" (2/3) ... [2019-11-20 04:38:11,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24e7948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:38:11, skipping insertion in model container [2019-11-20 04:38:11,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:38:11,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:38:11" (3/3) ... [2019-11-20 04:38:11,577 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.15.c [2019-11-20 04:38:11,621 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 04:38:11,621 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 04:38:11,621 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 04:38:11,621 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:38:11,621 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:38:11,621 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 04:38:11,622 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:38:11,622 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 04:38:11,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 04:38:11,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 04:38:11,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:38:11,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:38:11,659 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 04:38:11,659 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 04:38:11,659 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 04:38:11,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 04:38:11,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 04:38:11,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:38:11,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:38:11,661 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 04:38:11,661 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 04:38:11,667 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L13-3true [2019-11-20 04:38:11,668 INFO L796 eck$LassoCheckResult]: Loop: 3#L13-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L13-2true assume !(main_~y~0 > main_~z~0); 3#L13-3true [2019-11-20 04:38:11,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:38:11,673 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 04:38:11,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:38:11,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902904251] [2019-11-20 04:38:11,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:38:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:38:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:38:11,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-20 04:38:11,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:38:11,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252328618] [2019-11-20 04:38:11,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:38:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:38:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:38:11,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252328618] [2019-11-20 04:38:11,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:38:11,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 04:38:11,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636357596] [2019-11-20 04:38:11,865 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 04:38:11,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:38:11,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:38:11,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:38:11,886 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-11-20 04:38:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:38:11,906 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-20 04:38:11,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:38:11,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-20 04:38:11,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:38:11,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-11-20 04:38:11,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 04:38:11,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-20 04:38:11,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-11-20 04:38:11,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:38:11,917 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-20 04:38:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-11-20 04:38:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-11-20 04:38:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 04:38:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-11-20 04:38:11,945 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-20 04:38:11,946 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-20 04:38:11,946 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 04:38:11,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-11-20 04:38:11,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:38:11,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:38:11,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:38:11,947 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 04:38:11,947 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:38:11,947 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 24#L13-3 [2019-11-20 04:38:11,948 INFO L796 eck$LassoCheckResult]: Loop: 24#L13-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 25#L13-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L13-2 assume !(main_~y~0 > main_~z~0); 24#L13-3 [2019-11-20 04:38:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:38:11,948 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-20 04:38:11,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:38:11,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73040689] [2019-11-20 04:38:11,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:38:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,958 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:38:11,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:38:11,959 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-11-20 04:38:11,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:38:11,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235712164] [2019-11-20 04:38:11,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:38:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,976 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:38:11,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:38:11,977 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-11-20 04:38:11,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:38:11,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180431892] [2019-11-20 04:38:11,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:38:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:38:11,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:38:12,087 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:38:12,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:38:12,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:38:12,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:38:12,088 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 04:38:12,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:12,089 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:38:12,089 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:38:12,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2019-11-20 04:38:12,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:38:12,089 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:38:12,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:38:12,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:38:12,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:38:12,296 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:38:12,297 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:38:12,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 04:38:12,309 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:12,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 04:38:12,322 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_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:38:12,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 04:38:12,338 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:12,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 04:38:12,350 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_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:12,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 04:38:12,362 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:38:12,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 04:38:12,390 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:12,899 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 04:38:12,901 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:38:12,901 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:38:12,901 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:38:12,901 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:38:12,901 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:38:12,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:12,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:38:12,902 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:38:12,902 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.15.c_Iteration2_Loop [2019-11-20 04:38:12,902 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:38:12,902 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:38:12,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:38:12,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:38:12,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:38:13,043 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:38:13,048 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:38:13,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:38:13,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:38:13,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:38:13,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:38:13,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:38:13,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:38:13,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:13,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/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) [2019-11-20 04:38:13,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:38:13,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:38:13,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:38:13,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:38:13,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:38:13,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:38:13,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:13,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:38:13,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:38:13,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:38:13,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:38:13,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:38:13,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:38:13,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:38:13,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:38:13,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:38:13,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:38:13,172 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 04:38:13,172 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac74a69e-2035-4fe3-a38f-aae0421acdff/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 [2019-11-20 04:38:13,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:38:13,185 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 04:38:13,185 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:38:13,186 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-11-20 04:38:13,190 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 04:38:13,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:38:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:38:13,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:38:13,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:38:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:38:13,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 04:38:13,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:38:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:38:13,314 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 04:38:13,314 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-11-20 04:38:13,360 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 8 states and 9 transitions. Complement of second has 6 states. [2019-11-20 04:38:13,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 04:38:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 04:38:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-11-20 04:38:13,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-20 04:38:13,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:38:13,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-20 04:38:13,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:38:13,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-20 04:38:13,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:38:13,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-20 04:38:13,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:38:13,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2019-11-20 04:38:13,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 04:38:13,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 04:38:13,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 04:38:13,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:38:13,367 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:38:13,368 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:38:13,368 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:38:13,368 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 04:38:13,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:38:13,368 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:38:13,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 04:38:13,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 04:38:13 BoogieIcfgContainer [2019-11-20 04:38:13,376 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 04:38:13,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:38:13,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:38:13,377 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:38:13,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:38:11" (3/4) ... [2019-11-20 04:38:13,381 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:38:13,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:38:13,384 INFO L168 Benchmark]: Toolchain (without parser) took 2358.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 944.8 MB in the beginning and 984.6 MB in the end (delta: -39.8 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:38:13,384 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:38:13,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:38:13,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:38:13,386 INFO L168 Benchmark]: Boogie Preprocessor took 20.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:38:13,387 INFO L168 Benchmark]: RCFGBuilder took 207.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:38:13,388 INFO L168 Benchmark]: BuchiAutomizer took 1807.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.6 MB in the end (delta: 114.8 MB). Peak memory consumption was 114.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:38:13,388 INFO L168 Benchmark]: Witness Printer took 5.20 ms. Allocated memory is still 1.2 GB. Free memory is still 984.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:38:13,392 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.33 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 20.24 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 207.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1807.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.6 MB in the end (delta: 114.8 MB). Peak memory consumption was 114.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.20 ms. Allocated memory is still 1.2 GB. Free memory is still 984.6 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y + -1 * z and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf97 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp85 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...