./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.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 ab3d6100be77b3a64f0c1d69ccbef6855fa38fbc ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 18:16:29,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:16:29,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:16:29,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:16:29,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:16:29,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:16:29,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:16:29,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:16:29,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:16:29,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:16:29,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:16:29,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:16:29,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:16:29,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:16:29,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:16:29,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:16:29,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:16:29,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:16:29,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:16:29,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:16:29,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:16:29,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:16:29,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:16:29,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:16:29,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:16:29,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:16:29,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:16:29,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:16:29,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:16:29,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:16:29,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:16:29,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:16:29,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:16:29,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:16:29,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:16:29,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:16:29,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:16:29,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:16:29,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:16:29,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:16:29,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:16:29,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:16:29,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:16:29,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:16:29,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:16:29,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:16:29,138 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:16:29,139 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:16:29,139 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:16:29,139 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:16:29,139 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:16:29,139 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:16:29,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:16:29,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:16:29,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:16:29,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:16:29,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:16:29,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:16:29,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:16:29,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:16:29,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:16:29,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:16:29,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:16:29,143 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:16:29,143 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab3d6100be77b3a64f0c1d69ccbef6855fa38fbc [2021-07-06 18:16:29,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:16:29,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:16:29,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:16:29,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:16:29,395 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:16:29,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2021-07-06 18:16:29,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a313009a/3abfebe23f87422ba58500f555c1929f/FLAGcb81b7933 [2021-07-06 18:16:29,802 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:16:29,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2021-07-06 18:16:29,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a313009a/3abfebe23f87422ba58500f555c1929f/FLAGcb81b7933 [2021-07-06 18:16:29,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a313009a/3abfebe23f87422ba58500f555c1929f [2021-07-06 18:16:29,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:16:29,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:16:29,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:16:29,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:16:29,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:16:29,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:29,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f5eff5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29, skipping insertion in model container [2021-07-06 18:16:29,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:29,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:16:29,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:16:29,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:16:29,958 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:16:29,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:16:29,975 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:16:29,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29 WrapperNode [2021-07-06 18:16:29,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:16:29,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:16:29,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:16:29,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:16:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:29,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:16:30,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:16:30,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:16:30,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:16:30,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:16:30,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:16:30,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:16:30,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:16:30,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (1/1) ... [2021-07-06 18:16:30,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 18:16:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:16:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:16:30,226 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:16:30,227 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 18:16:30,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:16:30 BoogieIcfgContainer [2021-07-06 18:16:30,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:16:30,230 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:16:30,230 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:16:30,232 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:16:30,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:16:30,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:16:29" (1/3) ... [2021-07-06 18:16:30,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cf5310e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:16:30, skipping insertion in model container [2021-07-06 18:16:30,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:16:30,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:16:29" (2/3) ... [2021-07-06 18:16:30,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1cf5310e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:16:30, skipping insertion in model container [2021-07-06 18:16:30,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:16:30,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:16:30" (3/3) ... [2021-07-06 18:16:30,236 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-2.c [2021-07-06 18:16:30,279 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:16:30,280 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:16:30,280 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:16:30,280 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:16:30,280 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:16:30,280 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:16:30,280 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:16:30,280 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:16:30,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:16:30,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:16:30,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:16:30,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:16:30,303 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:16:30,303 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:16:30,303 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:16:30,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:16:30,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:16:30,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:16:30,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:16:30,304 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:16:30,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:16:30,309 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := 0;main_~y~0 := 0;main_~z~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L13-2true [2021-07-06 18:16:30,310 INFO L793 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~z~0 > 0);main_~x~0 := 1 + main_~x~0;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_~z~0 - 1; 5#L13-2true [2021-07-06 18:16:30,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:16:30,314 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-07-06 18:16:30,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:16:30,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67709682] [2021-07-06 18:16:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:16:30,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:16:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:16:30,370 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:16:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:16:30,378 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:16:30,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:16:30,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:16:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-07-06 18:16:30,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:16:30,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542475469] [2021-07-06 18:16:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:16:30,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:16:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:16:30,406 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:16:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:16:30,412 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:16:30,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:16:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:16:30,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-07-06 18:16:30,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:16:30,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223312701] [2021-07-06 18:16:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:16:30,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:16:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:16:30,428 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:16:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:16:30,437 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:16:30,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:16:30,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:16:30,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-06 18:16:30,522 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:16:30,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:16:30,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:16:30,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:16:30,523 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:16:30,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:16:30,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:16:30,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-easy2-2.c_Iteration1_Loop [2021-07-06 18:16:30,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:16:30,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:16:30,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:16:30,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:16:30,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:16:30,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:16:30,586 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:16:30,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-07-06 18:16:30,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:16:30,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:16:30,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:30,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-07-06 18:16:30,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:16:30,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:16:30,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:16:30,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1}, {ULTIMATE.start_main_~y~0=-4}, {ULTIMATE.start_main_~y~0=4}] Lambdas: [1, 2, 1] Nus: [0, 1] [2021-07-06 18:16:30,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:30,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-07-06 18:16:30,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:16:30,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:16:30,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:30,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-07-06 18:16:30,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:16:30,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:16:30,773 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 18:16:30,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:30,787 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:16:30,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:16:30,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:16:30,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:16:30,787 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:16:30,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:16:30,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:16:30,787 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-easy2-2.c_Iteration1_Loop [2021-07-06 18:16:30,787 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:16:30,787 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:16:30,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:16:30,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:16:30,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:16:30,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:16:30,872 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:16:30,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,874 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-07-06 18:16:30,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:16:30,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:16:30,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:16:30,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:16:30,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:16:30,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:16:30,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:16:30,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:16:30,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:16:30,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:30,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-07-06 18:16:30,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:16:30,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:16:30,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:16:30,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:16:30,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:16:30,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:16:30,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:16:30,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:16:30,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:16:30,945 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-07-06 18:16:30,945 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-07-06 18:16:30,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:16:30,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:16:30,948 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:16:30,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-07-06 18:16:30,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:16:30,950 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 18:16:30,950 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:16:30,951 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-07-06 18:16:30,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:30,975 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 18:16:30,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:16:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:16:31,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 18:16:31,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:16:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:16:31,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-06 18:16:31,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:16:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:16:31,022 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 [2021-07-06 18:16:31,023 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:16:31,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 18 transitions. Complement of second has 5 states. [2021-07-06 18:16:31,047 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 [2021-07-06 18:16:31,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:16:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-07-06 18:16:31,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-07-06 18:16:31,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:16:31,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-07-06 18:16:31,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:16:31,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-07-06 18:16:31,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:16:31,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-07-06 18:16:31,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:16:31,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-07-06 18:16:31,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:16:31,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:16:31,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:16:31,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:16:31,055 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:16:31,055 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:16:31,055 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:16:31,055 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 18:16:31,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 18:16:31,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:16:31,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 18:16:31,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:16:31 BoogieIcfgContainer [2021-07-06 18:16:31,067 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:16:31,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:16:31,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:16:31,068 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:16:31,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:16:30" (3/4) ... [2021-07-06 18:16:31,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 18:16:31,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:16:31,072 INFO L168 Benchmark]: Toolchain (without parser) took 1249.03 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 44.8 MB in the beginning and 48.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-07-06 18:16:31,072 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:16:31,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.67 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 36.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:16:31,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.08 ms. Allocated memory is still 65.0 MB. Free memory was 36.2 MB in the beginning and 48.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2021-07-06 18:16:31,074 INFO L168 Benchmark]: Boogie Preprocessor took 36.39 ms. Allocated memory is still 65.0 MB. Free memory was 48.6 MB in the beginning and 47.9 MB in the end (delta: 737.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:16:31,078 INFO L168 Benchmark]: RCFGBuilder took 183.98 ms. Allocated memory is still 65.0 MB. Free memory was 47.9 MB in the beginning and 39.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-07-06 18:16:31,078 INFO L168 Benchmark]: BuchiAutomizer took 837.01 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 39.5 MB in the beginning and 48.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-07-06 18:16:31,079 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 86.0 MB. Free memory is still 48.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:16:31,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 151.67 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 36.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.08 ms. Allocated memory is still 65.0 MB. Free memory was 36.2 MB in the beginning and 48.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.39 ms. Allocated memory is still 65.0 MB. Free memory was 48.6 MB in the beginning and 47.9 MB in the end (delta: 737.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 183.98 ms. Allocated memory is still 65.0 MB. Free memory was 47.9 MB in the beginning and 39.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 837.01 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 39.5 MB in the beginning and 48.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.28 ms. Allocated memory is still 86.0 MB. Free memory is still 48.2 MB. There was no memory consumed. Max. memory is 16.1 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 z and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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, 2.8ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 18:16:31,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-07-06 18:16:31,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...