./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi.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/Benghazi.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 2b89ce5b96ce55081609675201b2a9a116c2941a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:15:21,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:15:21,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:15:21,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:15:21,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:15:21,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:15:21,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:15:21,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:15:21,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:15:21,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:15:21,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:15:21,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:15:21,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:15:21,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:15:21,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:15:21,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:15:21,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:15:21,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:15:21,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:15:21,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:15:21,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:15:21,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:15:21,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:15:21,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:15:21,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:15:21,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:15:21,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:15:21,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:15:21,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:15:21,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:15:21,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:15:21,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:15:21,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:15:21,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:15:21,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:15:21,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:15:21,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:15:21,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:15:21,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:15:21,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:15:21,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:15:21,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:15:21,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:15:21,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:15:21,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:15:21,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:15:21,099 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:15:21,099 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:15:21,099 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:15:21,100 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:15:21,100 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:15:21,100 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:15:21,100 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:15:21,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:15:21,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:15:21,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:15:21,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:15:21,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:15:21,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:15:21,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:15:21,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:15:21,102 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:15:21,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:15:21,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:15:21,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:15:21,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:15:21,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:15:21,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:15:21,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:15:21,104 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:15:21,104 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2021-07-06 18:15:21,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:15:21,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:15:21,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:15:21,379 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:15:21,380 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:15:21,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi.c [2021-07-06 18:15:21,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e18f7d3/92315232e2624c18a699b9cbeef5b4c2/FLAG20b2d9555 [2021-07-06 18:15:21,807 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:15:21,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi.c [2021-07-06 18:15:21,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e18f7d3/92315232e2624c18a699b9cbeef5b4c2/FLAG20b2d9555 [2021-07-06 18:15:21,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e18f7d3/92315232e2624c18a699b9cbeef5b4c2 [2021-07-06 18:15:21,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:15:21,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:15:21,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:15:21,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:15:21,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:15:21,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:15:21" (1/1) ... [2021-07-06 18:15:21,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee68640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:21, skipping insertion in model container [2021-07-06 18:15:21,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:15:21" (1/1) ... [2021-07-06 18:15:21,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:15:21,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:15:21,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:15:21,976 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:15:22,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:15:22,034 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:15:22,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22 WrapperNode [2021-07-06 18:15:22,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:15:22,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:15:22,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:15:22,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:15:22,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:15:22,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:15:22,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:15:22,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:15:22,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:15:22,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:15:22,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:15:22,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:15:22,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:22,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:22,092 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 18:15:22,127 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 18:15:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:15:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:15:22,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:15:22,268 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 18:15:22,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:22 BoogieIcfgContainer [2021-07-06 18:15:22,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:15:22,272 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:15:22,272 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:15:22,275 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:15:22,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:22,276 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:15:21" (1/3) ... [2021-07-06 18:15:22,278 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20930111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:15:22, skipping insertion in model container [2021-07-06 18:15:22,278 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:22,278 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (2/3) ... [2021-07-06 18:15:22,279 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20930111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:15:22, skipping insertion in model container [2021-07-06 18:15:22,279 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:22,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:22" (3/3) ... [2021-07-06 18:15:22,280 INFO L389 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2021-07-06 18:15:22,324 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:15:22,324 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:15:22,324 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:15:22,324 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:15:22,324 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:15:22,325 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:15:22,325 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:15:22,325 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:15:22,334 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 18:15:22,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:15:22,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:15:22,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:15:22,346 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:15:22,347 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:15:22,347 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:15:22,347 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 18:15:22,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:15:22,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:15:22,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:15:22,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:15:22,348 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:15:22,353 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L22-2true [2021-07-06 18:15:22,353 INFO L793 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L22-2true [2021-07-06 18:15:22,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:22,357 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-07-06 18:15:22,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:22,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240781981] [2021-07-06 18:15:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:22,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,421 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,429 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:22,445 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-07-06 18:15:22,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:22,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119828457] [2021-07-06 18:15:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:22,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,465 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,477 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:22,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:22,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-07-06 18:15:22,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:22,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244648102] [2021-07-06 18:15:22,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:22,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,496 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,510 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:22,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:22,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-06 18:15:22,624 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:15:22,624 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:15:22,624 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:15:22,624 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:15:22,625 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:15:22,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:22,625 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:15:22,625 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:15:22,625 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2021-07-06 18:15:22,625 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:15:22,625 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:15:22,637 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 18:15:22,644 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 18:15:22,649 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 18:15:22,788 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:15:22,789 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:15:22,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:22,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:22,797 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 18:15:22,799 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 18:15:22,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:22,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:23,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:23,263 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: [] [2021-07-06 18:15:23,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-07-06 18:15:23,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:23,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:23,281 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 18:15:23,282 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 18:15:23,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:23,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:23,312 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:23,312 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: [] [2021-07-06 18:15:23,329 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 18:15:23,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:23,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:23,333 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 18:15:23,334 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 18:15:23,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:23,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:23,382 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 18:15:23,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:23,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:23,383 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 18:15:23,384 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 18:15:23,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:15:23,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:25,915 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 18:15:25,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-07-06 18:15:25,920 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:15:25,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:15:25,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:15:25,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:15:25,920 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:15:25,920 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:25,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:15:25,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:15:25,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2021-07-06 18:15:25,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:15:25,920 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:15:25,922 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 18:15:25,936 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 18:15:25,949 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 18:15:26,038 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:15:26,041 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:15:26,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,073 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 18:15:26,082 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 18:15:26,085 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 18:15:26,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:15:26,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:15:26,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:15:26,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,130 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 18:15:26,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,137 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 18:15:26,139 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 18:15:26,140 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 18:15:26,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:15:26,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:15:26,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:15:26,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,183 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 18:15:26,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,185 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 18:15:26,190 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 18:15:26,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:26,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:15:26,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:15:26,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:26,207 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 18:15:26,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,233 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 18:15:26,233 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-07-06 18:15:26,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,234 INFO L229 MonitoredProcess]: Starting monitored process 9 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 18:15:26,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-07-06 18:15:26,236 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 18:15:26,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,243 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-07-06 18:15:26,247 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-07-06 18:15:26,247 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-07-06 18:15:26,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:26,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,291 INFO L229 MonitoredProcess]: Starting monitored process 10 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 18:15:26,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-07-06 18:15:26,294 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 18:15:26,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,301 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-07-06 18:15:26,306 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-07-06 18:15:26,306 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-07-06 18:15:26,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:26,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,338 INFO L229 MonitoredProcess]: Starting monitored process 11 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 18:15:26,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-07-06 18:15:26,340 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 18:15:26,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:26,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,349 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-07-06 18:15:26,358 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-07-06 18:15:26,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:26,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:26,389 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-07-06 18:15:26,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,390 INFO L229 MonitoredProcess]: Starting monitored process 12 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 18:15:26,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-07-06 18:15:26,392 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 18:15:26,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,400 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-07-06 18:15:26,403 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-07-06 18:15:26,403 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-07-06 18:15:26,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:26,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,435 INFO L229 MonitoredProcess]: Starting monitored process 13 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 18:15:26,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-07-06 18:15:26,437 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 18:15:26,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,445 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-07-06 18:15:26,448 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-07-06 18:15:26,448 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-07-06 18:15:26,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:26,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:26,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,489 INFO L229 MonitoredProcess]: Starting monitored process 14 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 18:15:26,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-07-06 18:15:26,491 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 18:15:26,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:26,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:26,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:26,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:26,500 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-07-06 18:15:26,504 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-07-06 18:15:26,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:26,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:15:26,526 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-07-06 18:15:26,526 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-07-06 18:15:26,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:26,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:26,529 INFO L229 MonitoredProcess]: Starting monitored process 15 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 18:15:26,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:15:26,537 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 18:15:26,537 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:15:26,538 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0 - 1*ULTIMATE.start_main_~d1~0 f1 = -1*ULTIMATE.start_main_~d1~0 + 2*ULTIMATE.start_main_~x~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-07-06 18:15:26,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-07-06 18:15:26,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-07-06 18:15:26,558 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 18:15:26,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:15:26,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 18:15:26,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:15:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:15:26,616 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-06 18:15:26,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:15:26,617 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 18:15:26,626 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 18:15:26,627 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 18:15:26,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:26,669 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 18:15:26,670 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 18:15:26,672 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 18:15:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-07-06 18:15:26,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-07-06 18:15:26,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:15:26,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-07-06 18:15:26,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:15:26,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-07-06 18:15:26,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:15:26,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-07-06 18:15:26,675 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:15:26,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-07-06 18:15:26,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:15:26,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:15:26,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:15:26,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:15:26,678 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:15:26,678 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:15:26,678 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:15:26,678 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 18:15:26,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 18:15:26,678 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:15:26,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 18:15:26,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:15:26 BoogieIcfgContainer [2021-07-06 18:15:26,682 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:15:26,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:15:26,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:15:26,683 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:15:26,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:22" (3/4) ... [2021-07-06 18:15:26,685 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 18:15:26,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:15:26,686 INFO L168 Benchmark]: Toolchain (without parser) took 4862.50 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.3 MB in the beginning and 45.0 MB in the end (delta: -11.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:26,686 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.1 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:26,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.61 ms. Allocated memory is still 54.5 MB. Free memory was 33.2 MB in the beginning and 38.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:26,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.63 ms. Allocated memory is still 54.5 MB. Free memory was 38.2 MB in the beginning and 37.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:26,687 INFO L168 Benchmark]: Boogie Preprocessor took 13.38 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 36.2 MB in the end (delta: 916.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:26,688 INFO L168 Benchmark]: RCFGBuilder took 197.56 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 28.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:26,688 INFO L168 Benchmark]: BuchiAutomizer took 4409.73 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.8 MB in the beginning and 45.3 MB in the end (delta: -17.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:26,688 INFO L168 Benchmark]: Witness Printer took 2.58 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 45.0 MB in the end (delta: 375.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:26,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.1 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 211.61 ms. Allocated memory is still 54.5 MB. Free memory was 33.2 MB in the beginning and 38.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 20.63 ms. Allocated memory is still 54.5 MB. Free memory was 38.2 MB in the beginning and 37.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.38 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 36.2 MB in the end (delta: 916.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 197.56 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 28.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4409.73 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.8 MB in the beginning and 45.3 MB in the end (delta: -17.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.58 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 45.0 MB in the end (delta: 375.5 kB). 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 3-nested ranking function (if -1 * d1 + -1 * d2 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d1 + -1 * d2 > 0 then -1 * d1 + -1 * d2 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. 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, 5.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 18:15:26,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...