./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Cairo.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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-crafted/Cairo.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 4ee0473dc6d7092e83742edafdde9370f3b93e25 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:26:34,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:26:34,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:26:34,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:26:34,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:26:34,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:26:34,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:26:34,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:26:34,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:26:34,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:26:34,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:26:34,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:26:34,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:26:34,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:26:34,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:26:34,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:26:34,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:26:34,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:26:35,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:26:35,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:26:35,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:26:35,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:26:35,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:26:35,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:26:35,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:26:35,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:26:35,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:26:35,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:26:35,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:26:35,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:26:35,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:26:35,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:26:35,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:26:35,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:26:35,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:26:35,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:26:35,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:26:35,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:26:35,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:26:35,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:26:35,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:26:35,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:26:35,043 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:26:35,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:26:35,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:26:35,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:26:35,045 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:26:35,045 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:26:35,046 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:26:35,046 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:26:35,046 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:26:35,047 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:26:35,047 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:26:35,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:26:35,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:26:35,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:26:35,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:26:35,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:26:35,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:26:35,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:26:35,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:26:35,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:26:35,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:26:35,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:26:35,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:26:35,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:26:35,051 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:26:35,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:26:35,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:26:35,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:26:35,052 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:26:35,053 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:26:35,053 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 -> 4ee0473dc6d7092e83742edafdde9370f3b93e25 [2020-07-29 01:26:35,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:26:35,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:26:35,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:26:35,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:26:35,391 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:26:35,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo.c [2020-07-29 01:26:35,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9e4e4b9/4941588319ff41d28b72bda5c63ebc8a/FLAG37496ecff [2020-07-29 01:26:35,882 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:26:35,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo.c [2020-07-29 01:26:35,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9e4e4b9/4941588319ff41d28b72bda5c63ebc8a/FLAG37496ecff [2020-07-29 01:26:36,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9e4e4b9/4941588319ff41d28b72bda5c63ebc8a [2020-07-29 01:26:36,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:26:36,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:26:36,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:26:36,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:26:36,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:26:36,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193a3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36, skipping insertion in model container [2020-07-29 01:26:36,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:26:36,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:26:36,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:26:36,529 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:26:36,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:26:36,569 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:26:36,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36 WrapperNode [2020-07-29 01:26:36,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:26:36,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:26:36,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:26:36,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:26:36,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:26:36,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:26:36,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:26:36,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:26:36,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (1/1) ... [2020-07-29 01:26:36,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:26:36,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:26:36,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:26:36,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:26:36,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (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 [2020-07-29 01:26:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:26:36,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:26:36,940 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:26:36,941 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:26:36,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:26:36 BoogieIcfgContainer [2020-07-29 01:26:36,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:26:36,946 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:26:36,946 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:26:36,950 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:26:36,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:26:36,951 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:26:36" (1/3) ... [2020-07-29 01:26:36,952 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60ff44b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:26:36, skipping insertion in model container [2020-07-29 01:26:36,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:26:36,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:26:36" (2/3) ... [2020-07-29 01:26:36,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60ff44b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:26:36, skipping insertion in model container [2020-07-29 01:26:36,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:26:36,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:26:36" (3/3) ... [2020-07-29 01:26:36,960 INFO L371 chiAutomizerObserver]: Analyzing ICFG Cairo.c [2020-07-29 01:26:37,027 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:26:37,028 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:26:37,028 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:26:37,028 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:26:37,028 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:26:37,028 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:26:37,029 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:26:37,029 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:26:37,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:26:37,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:37,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:37,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:37,068 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:26:37,068 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:26:37,068 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:26:37,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:26:37,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:37,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:37,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:37,071 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:26:37,071 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:26:37,078 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 9#L20true assume main_~x~0 > 0; 5#L21-2true [2020-07-29 01:26:37,079 INFO L796 eck$LassoCheckResult]: Loop: 5#L21-2true assume !!(0 != main_~x~0);main_~x~0 := main_~x~0 - 1; 5#L21-2true [2020-07-29 01:26:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:37,084 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-07-29 01:26:37,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:26:37,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709528218] [2020-07-29 01:26:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:26:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:26:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:37,180 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2020-07-29 01:26:37,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:26:37,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374889041] [2020-07-29 01:26:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:26:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,196 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:26:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:37,198 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2020-07-29 01:26:37,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:26:37,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592568668] [2020-07-29 01:26:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:26:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:26:37,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:26:37,214 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:26:37,280 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:26:37,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:26:37,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:26:37,283 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:26:37,283 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:26:37,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:37,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:26:37,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:26:37,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo.c_Iteration1_Loop [2020-07-29 01:26:37,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:26:37,286 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:26:37,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,560 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:26:37,562 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 [2020-07-29 01:26:37,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:37,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:26:37,605 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:37,606 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:37,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:37,648 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 [2020-07-29 01:26:37,653 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:37,653 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 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 [2020-07-29 01:26:37,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:37,684 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 [2020-07-29 01:26:37,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:26:37,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:26:37,741 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:37,741 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-5} Honda state: {ULTIMATE.start_main_~x~0=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [11, 0, 1] Nus: [0, 0] [2020-07-29 01:26:37,796 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:26:37,796 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:26:37,796 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:26:37,796 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:26:37,798 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:26:37,798 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:37,798 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:26:37,798 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:26:37,798 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo.c_Iteration1_Lasso [2020-07-29 01:26:37,798 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:26:37,799 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:26:37,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:37,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:38,105 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:26:38,105 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-07-29 01:26:38,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:38,119 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:38,124 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-07-29 01:26:38,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:38,173 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:38,180 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:38,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:26:38,228 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:38,229 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-07-29 01:26:38,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:38,280 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:26:38,287 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:38,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:26:38,338 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:38,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:26:38,394 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,505 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:26:38,508 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:26:38,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:26:38,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:26:38,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:26:38,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:26:38,509 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,509 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:26:38,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:26:38,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: Cairo.c_Iteration1_Lasso [2020-07-29 01:26:38,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:26:38,512 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:26:38,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:38,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:38,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:38,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:38,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:26:38,712 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:26:38,718 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:38,731 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 [2020-07-29 01:26:38,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:38,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:38,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:38,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:38,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:26:38,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,747 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,774 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 [2020-07-29 01:26:38,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:38,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:38,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:38,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:38,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:26:38,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:26:38,792 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:38,838 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 [2020-07-29 01:26:38,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:38,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:26:38,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:38,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:26:38,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:38,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:26:38,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,846 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,883 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 [2020-07-29 01:26:38,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:26:38,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:26:38,886 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-07-29 01:26:38,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:26:38,908 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-07-29 01:26:38,908 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-07-29 01:26:38,933 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:26:38,958 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-07-29 01:26:38,958 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:26:38,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:26:38,972 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-07-29 01:26:38,972 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:26:38,973 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 >= 0] [2020-07-29 01:26:39,018 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-29 01:26:39,024 INFO L393 LassoCheck]: Loop: "assume !!(0 != main_~x~0);main_~x~0 := main_~x~0 - 1;" [2020-07-29 01:26:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:39,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:26:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:39,082 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-29 01:26:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:39,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:26:39,100 INFO L280 TraceCheckUtils]: 0: Hoare triple {17#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; {17#unseeded} is VALID [2020-07-29 01:26:39,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {17#unseeded} assume main_~x~0 > 0; {36#(and (>= ULTIMATE.start_main_~x~0 0) unseeded)} is VALID [2020-07-29 01:26:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:39,106 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-29 01:26:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:26:39,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:26:39,113 INFO L280 TraceCheckUtils]: 0: Hoare triple {37#(and (>= oldRank0 ULTIMATE.start_main_~x~0) (>= ULTIMATE.start_main_~x~0 0))} assume !!(0 != main_~x~0);main_~x~0 := main_~x~0 - 1; {39#(and (>= ULTIMATE.start_main_~x~0 0) (or (and (> oldRank0 ULTIMATE.start_main_~x~0) (>= oldRank0 0)) unseeded))} is VALID [2020-07-29 01:26:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:26:39,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:26:39,138 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:26:39,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,151 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 [2020-07-29 01:26:39,153 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2020-07-29 01:26:39,255 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 20 states and 23 transitions. Complement of second has 5 states. [2020-07-29 01:26:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:26:39,255 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:26:39,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:26:39,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:39,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:39,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:39,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:26:39,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:26:39,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:26:39,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:26:39,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2020-07-29 01:26:39,265 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:26:39,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:26:39,267 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states. [2020-07-29 01:26:39,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:26:39,269 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:26:39,270 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:26:39,272 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:26:39,272 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:26:39,273 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 20 states and 23 transitions. cyclomatic complexity: 4 [2020-07-29 01:26:39,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. cyclomatic complexity: 4 [2020-07-29 01:26:39,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:26:39,274 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:26:39,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:39,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:39,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:39,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:26:39,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:26:39,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:26:39,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:26:39,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:26:39,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:26:39,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:26:39,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:26:39,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:26:39,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:39,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:39,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 23 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:26:39,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,287 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:26:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:26:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-07-29 01:26:39,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:26:39,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:26:39,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:26:39,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:26:39,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. cyclomatic complexity: 4 [2020-07-29 01:26:39,298 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:26:39,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2020-07-29 01:26:39,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:26:39,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:26:39,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:26:39,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:26:39,305 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:26:39,306 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:26:39,306 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:26:39,306 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:26:39,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:26:39,306 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:26:39,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:26:39,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:26:39 BoogieIcfgContainer [2020-07-29 01:26:39,315 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:26:39,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:26:39,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:26:39,316 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:26:39,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:26:36" (3/4) ... [2020-07-29 01:26:39,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:26:39,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:26:39,326 INFO L168 Benchmark]: Toolchain (without parser) took 3085.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.2 MB in the beginning and 911.8 MB in the end (delta: 40.4 MB). Peak memory consumption was 185.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:39,328 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:26:39,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.35 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:39,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -200.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:39,331 INFO L168 Benchmark]: Boogie Preprocessor took 20.85 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. [2020-07-29 01:26:39,332 INFO L168 Benchmark]: RCFGBuilder took 265.16 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:39,333 INFO L168 Benchmark]: BuchiAutomizer took 2368.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 911.8 MB in the end (delta: 211.1 MB). Peak memory consumption was 211.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:26:39,333 INFO L168 Benchmark]: Witness Printer took 7.16 ms. Allocated memory is still 1.2 GB. Free memory is still 911.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:26:39,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.35 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 88.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -200.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.85 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 265.16 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2368.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 911.8 MB in the end (delta: 211.1 MB). Peak memory consumption was 211.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.16 ms. Allocated memory is still 1.2 GB. Free memory is still 911.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq181 hnf95 smp100 dnf156 smp100 tf102 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 94ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 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...