./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/b.07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a3a1315287b984b6ff3d1521ef67a642a499a933 ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:59:15,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:59:15,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:59:15,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:59:15,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:59:15,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:59:15,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:59:15,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:59:15,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:59:15,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:59:15,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:59:15,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:59:15,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:59:15,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:59:15,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:59:15,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:59:15,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:59:15,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:59:15,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:59:15,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:59:15,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:59:15,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:59:15,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:59:15,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:59:15,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:59:15,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:59:15,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:59:15,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:59:15,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:59:15,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:59:15,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:59:15,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:59:15,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:59:15,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:59:15,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:59:15,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:59:15,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:59:15,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:59:15,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:59:15,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:59:15,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:59:15,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 02:59:15,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:59:15,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:59:15,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:59:15,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:59:15,194 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:59:15,194 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 02:59:15,195 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 02:59:15,195 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 02:59:15,195 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 02:59:15,196 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 02:59:15,197 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 02:59:15,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:59:15,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:59:15,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:59:15,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:59:15,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 02:59:15,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 02:59:15,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 02:59:15,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:59:15,200 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 02:59:15,200 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:59:15,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 02:59:15,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:59:15,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:59:15,201 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 02:59:15,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:59:15,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:59:15,202 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 02:59:15,203 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 02:59:15,203 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> a3a1315287b984b6ff3d1521ef67a642a499a933 [2019-11-28 02:59:15,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:59:15,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:59:15,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:59:15,532 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:59:15,533 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:59:15,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.07.c [2019-11-28 02:59:15,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52cfa410/40acd87887144e2f83604268a3cf3ed6/FLAG168391ce4 [2019-11-28 02:59:16,023 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:59:16,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.07.c [2019-11-28 02:59:16,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52cfa410/40acd87887144e2f83604268a3cf3ed6/FLAG168391ce4 [2019-11-28 02:59:16,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52cfa410/40acd87887144e2f83604268a3cf3ed6 [2019-11-28 02:59:16,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:59:16,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:59:16,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:59:16,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:59:16,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:59:16,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1844f808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16, skipping insertion in model container [2019-11-28 02:59:16,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:59:16,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:59:16,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:59:16,619 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:59:16,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:59:16,645 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:59:16,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16 WrapperNode [2019-11-28 02:59:16,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:59:16,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:59:16,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:59:16,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:59:16,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:59:16,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:59:16,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:59:16,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:59:16,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2019-11-28 02:59:16,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:59:16,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:59:16,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:59:16,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:59:16,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:59:16,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:59:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:59:16,951 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:59:16,952 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:59:16,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:16 BoogieIcfgContainer [2019-11-28 02:59:16,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:59:16,954 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 02:59:16,955 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 02:59:16,958 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 02:59:16,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:59:16,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:59:16" (1/3) ... [2019-11-28 02:59:16,961 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9004f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:59:16, skipping insertion in model container [2019-11-28 02:59:16,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:59:16,961 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (2/3) ... [2019-11-28 02:59:16,962 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9004f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:59:16, skipping insertion in model container [2019-11-28 02:59:16,962 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:59:16,962 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:16" (3/3) ... [2019-11-28 02:59:16,964 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.07.c [2019-11-28 02:59:17,015 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 02:59:17,016 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 02:59:17,016 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 02:59:17,016 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:59:17,016 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:59:17,017 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 02:59:17,017 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:59:17,017 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 02:59:17,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-28 02:59:17,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:59:17,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:59:17,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:59:17,060 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:59:17,061 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 02:59:17,061 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 02:59:17,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-28 02:59:17,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:59:17,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:59:17,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:59:17,063 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:59:17,063 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 02:59:17,072 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2019-11-28 02:59:17,073 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 > main_~z~0 && main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 3#L12-2true [2019-11-28 02:59:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:17,079 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 02:59:17,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:59:17,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011254997] [2019-11-28 02:59:17,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:59:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:59:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:59:17,183 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:59:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:17,184 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-28 02:59:17,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:59:17,185 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61165063] [2019-11-28 02:59:17,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:59:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:59:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:59:17,205 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:59:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:17,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 02:59:17,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:59:17,208 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708468795] [2019-11-28 02:59:17,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:59:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:59:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:59:17,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:59:17,329 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:59:17,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:59:17,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:59:17,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:59:17,332 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:59:17,334 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:17,334 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:59:17,334 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:59:17,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.07.c_Iteration1_Loop [2019-11-28 02:59:17,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:59:17,337 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:59:17,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:17,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:17,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:17,635 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:59:17,636 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:59:17,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:59:17,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:59:17,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:59:17,653 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:17,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:59:17,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:59:17,668 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:59:17,669 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:59:17,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:59:17,691 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:17,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:59:17,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:59:18,012 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:59:18,014 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:59:18,014 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:59:18,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:59:18,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:59:18,015 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:59:18,015 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:18,015 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:59:18,015 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:59:18,015 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.07.c_Iteration1_Loop [2019-11-28 02:59:18,015 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:59:18,016 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:59:18,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:18,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:18,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:59:18,109 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:59:18,115 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:59:18,130 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 [2019-11-28 02:59:18,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:59:18,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:59:18,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:59:18,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:59:18,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:59:18,139 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 [2019-11-28 02:59:18,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:59:18,161 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 [2019-11-28 02:59:18,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:59:18,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:59:18,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:59:18,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:59:18,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:59:18,169 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 [2019-11-28 02:59:18,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:59:18,192 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 [2019-11-28 02:59:18,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:59:18,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:59:18,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:59:18,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:59:18,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:59:18,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:59:18,198 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 [2019-11-28 02:59:18,203 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:59:18,208 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:59:18,208 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:59:18,224 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:59:18,225 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:59:18,225 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:59:18,226 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-28 02:59:18,232 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:59:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:59:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:18,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:59:18,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:59:18,289 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:59:18,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:59:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:59:18,307 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 [2019-11-28 02:59:18,309 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-11-28 02:59:18,346 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2019-11-28 02:59:18,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:59:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 02:59:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-11-28 02:59:18,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-28 02:59:18,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:18,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-28 02:59:18,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:18,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-28 02:59:18,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:59:18,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-28 02:59:18,357 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:59:18,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-28 02:59:18,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 02:59:18,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 02:59:18,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 02:59:18,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 02:59:18,363 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:59:18,363 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:59:18,363 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:59:18,364 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 02:59:18,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:59:18,364 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:59:18,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 02:59:18,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:59:18 BoogieIcfgContainer [2019-11-28 02:59:18,372 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 02:59:18,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:59:18,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:59:18,373 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:59:18,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:16" (3/4) ... [2019-11-28 02:59:18,377 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:59:18,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:59:18,381 INFO L168 Benchmark]: Toolchain (without parser) took 1977.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -54.2 MB). Peak memory consumption was 71.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:18,382 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:59:18,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.60 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:18,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:18,385 INFO L168 Benchmark]: Boogie Preprocessor took 18.32 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:18,386 INFO L168 Benchmark]: RCFGBuilder took 203.39 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:18,387 INFO L168 Benchmark]: BuchiAutomizer took 1417.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:59:18,387 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:59:18,392 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.60 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.32 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.39 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1417.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.1 MB). Peak memory consumption was 99.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...