./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash ac0c39e955880a6b0806ad5f8add28438e78eb47defb435342badf7c95feaa91 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 07:35:18,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:35:18,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:35:18,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:35:18,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:35:18,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:35:18,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:35:18,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:35:18,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:35:18,313 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:35:18,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:35:18,314 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:35:18,314 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:35:18,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:35:18,315 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:35:18,316 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:35:18,316 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:35:18,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:35:18,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:35:18,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:35:18,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:35:18,316 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:35:18,316 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac0c39e955880a6b0806ad5f8add28438e78eb47defb435342badf7c95feaa91 [2025-01-10 07:35:18,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:35:18,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:35:18,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:35:18,563 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:35:18,567 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:35:18,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/gauss_sum.i [2025-01-10 07:35:19,827 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6bc26163e/652db7962113400e82cc395c579538d7/FLAGc39bc06fa [2025-01-10 07:35:20,063 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:35:20,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i [2025-01-10 07:35:20,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6bc26163e/652db7962113400e82cc395c579538d7/FLAGc39bc06fa [2025-01-10 07:35:20,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6bc26163e/652db7962113400e82cc395c579538d7 [2025-01-10 07:35:20,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:35:20,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:35:20,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:35:20,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:35:20,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:35:20,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7098b73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20, skipping insertion in model container [2025-01-10 07:35:20,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:35:20,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:35:20,229 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:35:20,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:35:20,250 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:35:20,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20 WrapperNode [2025-01-10 07:35:20,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:35:20,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:35:20,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:35:20,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:35:20,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,276 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 35 [2025-01-10 07:35:20,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:35:20,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:35:20,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:35:20,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:35:20,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,294 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 07:35:20,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,297 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:35:20,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:35:20,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:35:20,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:35:20,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (1/1) ... [2025-01-10 07:35:20,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:35:20,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:35:20,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 07:35:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:35:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:35:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:35:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:35:20,393 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:35:20,394 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:35:20,461 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-01-10 07:35:20,461 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:35:20,466 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:35:20,466 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 07:35:20,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:35:20 BoogieIcfgContainer [2025-01-10 07:35:20,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:35:20,467 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:35:20,468 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:35:20,471 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:35:20,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:35:20,471 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:35:20" (1/3) ... [2025-01-10 07:35:20,472 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51d389f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:35:20, skipping insertion in model container [2025-01-10 07:35:20,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:35:20,472 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:35:20" (2/3) ... [2025-01-10 07:35:20,472 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51d389f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:35:20, skipping insertion in model container [2025-01-10 07:35:20,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:35:20,473 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:35:20" (3/3) ... [2025-01-10 07:35:20,473 INFO L363 chiAutomizerObserver]: Analyzing ICFG gauss_sum.i [2025-01-10 07:35:20,506 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:35:20,506 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:35:20,506 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:35:20,506 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:35:20,506 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:35:20,506 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:35:20,506 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:35:20,506 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:35:20,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2025-01-10 07:35:20,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-01-10 07:35:20,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:35:20,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:35:20,521 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 07:35:20,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-01-10 07:35:20,521 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:35:20,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2025-01-10 07:35:20,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-01-10 07:35:20,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:35:20,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:35:20,522 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 07:35:20,522 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-01-10 07:35:20,527 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~n~0#1, main_~sum~0#1, main_~i~0#1;havoc main_~n~0#1;havoc main_~sum~0#1;havoc main_~i~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000);main_~sum~0#1 := 0;main_~i~0#1 := 1;" [2025-01-10 07:35:20,527 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 <= main_~n~0#1;main_~sum~0#1 := main_~sum~0#1 + main_~i~0#1;main_#t~post2#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1;" [2025-01-10 07:35:20,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:35:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2025-01-10 07:35:20,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:35:20,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617776248] [2025-01-10 07:35:20,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:35:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:35:20,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:35:20,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:35:20,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:20,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:35:20,581 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:35:20,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:35:20,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:35:20,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:20,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:35:20,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:35:20,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:35:20,598 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2025-01-10 07:35:20,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:35:20,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739648163] [2025-01-10 07:35:20,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:35:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:35:20,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-01-10 07:35:20,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-01-10 07:35:20,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:20,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:35:20,609 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:35:20,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-01-10 07:35:20,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-01-10 07:35:20,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:20,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:35:20,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:35:20,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:35:20,617 INFO L85 PathProgramCache]: Analyzing trace with hash 925671, now seen corresponding path program 1 times [2025-01-10 07:35:20,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:35:20,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222234578] [2025-01-10 07:35:20,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:35:20,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:35:20,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 07:35:20,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 07:35:20,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:20,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:35:20,631 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:35:20,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 07:35:20,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 07:35:20,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:20,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:35:20,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:35:20,712 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:35:20,713 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:35:20,713 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:35:20,713 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:35:20,713 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 07:35:20,713 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:20,713 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:35:20,714 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:35:20,714 INFO L132 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2025-01-10 07:35:20,714 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:35:20,717 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:35:20,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:35:20,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:35:20,795 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:35:20,796 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 07:35:20,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:20,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:35:20,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:35:20,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-01-10 07:35:20,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 07:35:20,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:35:20,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-01-10 07:35:20,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:20,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:35:20,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:35:20,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-01-10 07:35:20,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 07:35:20,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 07:35:20,926 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 07:35:20,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-01-10 07:35:20,932 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 07:35:20,932 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 07:35:20,932 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 07:35:20,932 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 07:35:20,932 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 07:35:20,932 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:20,933 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 07:35:20,933 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 07:35:20,933 INFO L132 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2025-01-10 07:35:20,933 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 07:35:20,933 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 07:35:20,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:35:20,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 07:35:20,976 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 07:35:20,978 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 07:35:20,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:20,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:35:20,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:35:20,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-01-10 07:35:20,988 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 [2025-01-10 07:35:20,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 07:35:20,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 07:35:21,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 07:35:21,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 07:35:21,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 07:35:21,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 07:35:21,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 07:35:21,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 07:35:21,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 07:35:21,012 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 07:35:21,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:35:21,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:35:21,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:35:21,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-01-10 07:35:21,020 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 07:35:21,020 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 07:35:21,021 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 07:35:21,021 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~n~0#1 - 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2025-01-10 07:35:21,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-01-10 07:35:21,030 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 07:35:21,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:35:21,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 07:35:21,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 07:35:21,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:21,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:35:21,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 07:35:21,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:35:21,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-01-10 07:35:21,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-01-10 07:35:21,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:35:21,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:35:21,075 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 07:35:21,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 07:35:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:35:21,096 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-01-10 07:35:21,097 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-01-10 07:35:21,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 16 states and 19 transitions. Complement of second has 3 states. [2025-01-10 07:35:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-01-10 07:35:21,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-01-10 07:35:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2025-01-10 07:35:21,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2025-01-10 07:35:21,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:35:21,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2025-01-10 07:35:21,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:35:21,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2025-01-10 07:35:21,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 07:35:21,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2025-01-10 07:35:21,128 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:35:21,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2025-01-10 07:35:21,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-01-10 07:35:21,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-01-10 07:35:21,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-01-10 07:35:21,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:35:21,130 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:35:21,130 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:35:21,130 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 07:35:21,130 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:35:21,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-01-10 07:35:21,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 07:35:21,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-01-10 07:35:21,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:35:21 BoogieIcfgContainer [2025-01-10 07:35:21,135 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:35:21,136 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:35:21,136 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:35:21,136 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:35:21,136 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:35:20" (3/4) ... [2025-01-10 07:35:21,137 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 07:35:21,138 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:35:21,138 INFO L158 Benchmark]: Toolchain (without parser) took 1039.27ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 53.9MB in the end (delta: 56.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-10 07:35:21,138 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:35:21,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.60ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 99.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:35:21,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.56ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.5MB in the end (delta: 942.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:35:21,139 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.7MB in the end (delta: 857.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:35:21,139 INFO L158 Benchmark]: RCFGBuilder took 162.68ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 87.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:35:21,139 INFO L158 Benchmark]: BuchiAutomizer took 667.82ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 53.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-10 07:35:21,139 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:35:21,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.60ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 99.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.56ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.5MB in the end (delta: 942.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.7MB in the end (delta: 857.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 162.68ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 87.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 667.82ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 53.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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 ((((long long) -2 * i) + ((long long) 2 * n)) + 1) and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-01-10 07:35:21,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-01-10 07:35:21,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE