./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/trex02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/loops/trex02-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:03:13,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:03:13,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:03:13,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:03:13,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:03:13,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:03:14,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:03:14,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:03:14,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:03:14,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:03:14,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:03:14,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:03:14,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:03:14,024 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:03:14,024 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:03:14,024 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:03:14,024 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:03:14,024 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:03:14,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:03:14,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:03:14,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:03:14,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:03:14,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:03:14,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:03:14,027 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:03:14,027 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/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 -> 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 [2025-03-04 16:03:14,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:03:14,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:03:14,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:03:14,232 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:03:14,232 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:03:14,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex02-2.c [2025-03-04 16:03:15,357 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/524247ab7/01659250051841cbae361f2fdccd7bc0/FLAG2c0a434c1 [2025-03-04 16:03:15,546 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:03:15,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex02-2.c [2025-03-04 16:03:15,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/524247ab7/01659250051841cbae361f2fdccd7bc0/FLAG2c0a434c1 [2025-03-04 16:03:15,585 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/524247ab7/01659250051841cbae361f2fdccd7bc0 [2025-03-04 16:03:15,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:03:15,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:03:15,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:03:15,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:03:15,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:03:15,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3973dbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15, skipping insertion in model container [2025-03-04 16:03:15,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:03:15,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:03:15,723 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:03:15,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:03:15,744 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:03:15,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15 WrapperNode [2025-03-04 16:03:15,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:03:15,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:03:15,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:03:15,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:03:15,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,767 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 36 [2025-03-04 16:03:15,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:03:15,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:03:15,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:03:15,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:03:15,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,782 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]. [2025-03-04 16:03:15,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,791 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:03:15,792 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:03:15,792 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:03:15,792 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:03:15,792 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (1/1) ... [2025-03-04 16:03:15,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:15,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:03:15,819 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) [2025-03-04 16:03:15,821 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 [2025-03-04 16:03:15,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:03:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:03:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:03:15,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:03:15,877 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:03:15,878 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:03:15,957 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-04 16:03:15,957 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:03:15,963 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:03:15,963 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:03:15,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:03:15 BoogieIcfgContainer [2025-03-04 16:03:15,963 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:03:15,964 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:03:15,964 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:03:15,967 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:03:15,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:03:15,968 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:03:15" (1/3) ... [2025-03-04 16:03:15,969 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28158d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:03:15, skipping insertion in model container [2025-03-04 16:03:15,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:03:15,969 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:03:15" (2/3) ... [2025-03-04 16:03:15,969 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28158d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:03:15, skipping insertion in model container [2025-03-04 16:03:15,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:03:15,970 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:03:15" (3/3) ... [2025-03-04 16:03:15,970 INFO L363 chiAutomizerObserver]: Analyzing ICFG trex02-2.c [2025-03-04 16:03:16,000 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:03:16,001 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:03:16,001 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:03:16,001 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:03:16,001 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:03:16,001 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:03:16,001 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:03:16,001 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:03:16,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2025-03-04 16:03:16,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 16:03:16,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:03:16,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:03:16,019 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 16:03:16,019 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-04 16:03:16,020 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:03:16,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2025-03-04 16:03:16,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 16:03:16,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:03:16,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:03:16,022 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 16:03:16,023 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-04 16:03:16,027 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);~x~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_~c~0#1;havoc main_#t~nondet5#1;~x~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2025-03-04 16:03:16,028 INFO L754 eck$LassoCheckResult]: Loop: "assume ~x~0 > 0;havoc main_#t~nondet6#1;assume 0 == main_#t~nondet6#1 || 1 == main_#t~nondet6#1;main_~c~0#1 := (if 0 == main_#t~nondet6#1 % 256 then 0 else 1);havoc main_#t~nondet6#1;" "assume 0 != main_~c~0#1 % 256;assume { :begin_inline_foo } true;havoc foo_#t~post4#1;foo_#t~post4#1 := ~x~0;~x~0 := foo_#t~post4#1 - 1;havoc foo_#t~post4#1;" "havoc foo_#t~post4#1;assume { :end_inline_foo } true;" "havoc main_~c~0#1;" [2025-03-04 16:03:16,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:03:16,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1440, now seen corresponding path program 1 times [2025-03-04 16:03:16,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:03:16,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42262530] [2025-03-04 16:03:16,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:03:16,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:03:16,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:03:16,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:03:16,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:03:16,094 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:03:16,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:03:16,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:03:16,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:03:16,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:03:16,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:03:16,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1320701, now seen corresponding path program 1 times [2025-03-04 16:03:16,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:03:16,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682938732] [2025-03-04 16:03:16,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:03:16,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:03:16,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 16:03:16,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 16:03:16,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:03:16,135 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:03:16,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 16:03:16,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 16:03:16,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:03:16,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:03:16,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:03:16,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1330267420, now seen corresponding path program 1 times [2025-03-04 16:03:16,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:03:16,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274817676] [2025-03-04 16:03:16,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:03:16,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:03:16,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 16:03:16,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 16:03:16,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:03:16,167 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:03:16,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 16:03:16,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 16:03:16,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:03:16,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:03:16,296 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:03:16,297 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:03:16,297 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:03:16,297 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:03:16,297 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 16:03:16,297 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:03:16,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:03:16,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: trex02-2.c_Iteration1_Loop [2025-03-04 16:03:16,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:03:16,298 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:03:16,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,379 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:03:16,380 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 16:03:16,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:03:16,384 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) [2025-03-04 16:03:16,385 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 [2025-03-04 16:03:16,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:03:16,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:03:16,399 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:03:16,400 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:03:16,405 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 [2025-03-04 16:03:16,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:03:16,408 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) [2025-03-04 16:03:16,409 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 [2025-03-04 16:03:16,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:03:16,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:03:16,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-04 16:03:16,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:03:16,429 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) [2025-03-04 16:03:16,431 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 [2025-03-04 16:03:16,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 16:03:16,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:03:16,455 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 16:03:16,459 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 [2025-03-04 16:03:16,459 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:03:16,459 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:03:16,459 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:03:16,459 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:03:16,462 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 16:03:16,462 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,462 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:03:16,462 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:03:16,462 INFO L132 ssoRankerPreferences]: Filename of dumped script: trex02-2.c_Iteration1_Loop [2025-03-04 16:03:16,462 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:03:16,462 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:03:16,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:03:16,504 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:03:16,507 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 16:03:16,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:03:16,510 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) [2025-03-04 16:03:16,511 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 [2025-03-04 16:03:16,513 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 [2025-03-04 16:03:16,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:03:16,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:03:16,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:03:16,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:03:16,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:03:16,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:03:16,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:03:16,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 16:03:16,533 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 16:03:16,535 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 16:03:16,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:03:16,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:03:16,563 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) [2025-03-04 16:03:16,564 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 [2025-03-04 16:03:16,565 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 16:03:16,565 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 16:03:16,565 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 16:03:16,565 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2025-03-04 16:03:16,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-03-04 16:03:16,573 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 16:03:16,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:03:16,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:03:16,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:03:16,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:03:16,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 16:03:16,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:03:16,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 16:03:16,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 16:03:16,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:03:16,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:03:16,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 16:03:16,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:03:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:03:16,676 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-03-04 16:03:16,677 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2025-03-04 16:03:16,707 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 30 states and 35 transitions. Complement of second has 7 states. [2025-03-04 16:03:16,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-04 16:03:16,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2025-03-04 16:03:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2025-03-04 16:03:16,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2025-03-04 16:03:16,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:03:16,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2025-03-04 16:03:16,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:03:16,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2025-03-04 16:03:16,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:03:16,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2025-03-04 16:03:16,718 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:03:16,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2025-03-04 16:03:16,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 16:03:16,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 16:03:16,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 16:03:16,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:03:16,721 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:03:16,721 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:03:16,721 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:03:16,721 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:03:16,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 16:03:16,721 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:03:16,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 16:03:16,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:03:16 BoogieIcfgContainer [2025-03-04 16:03:16,726 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:03:16,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:03:16,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:03:16,727 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:03:16,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:03:15" (3/4) ... [2025-03-04 16:03:16,729 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 16:03:16,730 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:03:16,732 INFO L158 Benchmark]: Toolchain (without parser) took 1136.57ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 43.9MB in the end (delta: 62.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-04 16:03:16,733 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:03:16,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.62ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 95.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:03:16,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.20ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 94.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:03:16,733 INFO L158 Benchmark]: Boogie Preprocessor took 22.65ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 94.1MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:03:16,733 INFO L158 Benchmark]: IcfgBuilder took 171.81ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 83.0MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:03:16,734 INFO L158 Benchmark]: BuchiAutomizer took 762.54ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 43.9MB in the end (delta: 39.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-04 16:03:16,735 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 142.6MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:03:16,736 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 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.62ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 95.3MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.20ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 94.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.65ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 94.1MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 171.81ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 83.0MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 762.54ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 43.9MB in the end (delta: 39.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 142.6MB. Free memory is still 43.9MB. 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 x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -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, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 57ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 16:03:16,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-04 16:03:16,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE