./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed 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/termination-crafted/easy1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6ac2aa18762d979209bcd04d19d6f902a372d08cc384f065a4b8009fe3c76991 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:48:11,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:48:11,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-09 06:48:11,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:48:11,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:48:11,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 06:48:11,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:48:11,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:48:11,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:48:11,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:48:11,900 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:48:11,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:48:11,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:48:11,900 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:48:11,901 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 06:48:11,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 06:48:11,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:48:11,902 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:48:11,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:48:11,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:48:11,903 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 06:48:11,903 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac2aa18762d979209bcd04d19d6f902a372d08cc384f065a4b8009fe3c76991 [2025-03-09 06:48:12,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:48:12,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:48:12,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:48:12,160 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:48:12,160 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:48:12,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/easy1.c [2025-03-09 06:48:13,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c118e209/e9539709dc654cac8495cb719a1328a8/FLAG4a601d2e0 [2025-03-09 06:48:13,527 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:48:13,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/easy1.c [2025-03-09 06:48:13,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c118e209/e9539709dc654cac8495cb719a1328a8/FLAG4a601d2e0 [2025-03-09 06:48:13,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c118e209/e9539709dc654cac8495cb719a1328a8 [2025-03-09 06:48:13,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:48:13,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:48:13,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:48:13,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:48:13,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:48:13,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:13,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220909c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13, skipping insertion in model container [2025-03-09 06:48:13,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:13,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:48:13,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:48:13,969 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:48:13,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:48:13,984 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:48:13,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13 WrapperNode [2025-03-09 06:48:13,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:48:13,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:48:13,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:48:13,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:48:13,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:13,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,000 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2025-03-09 06:48:14,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:48:14,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:48:14,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:48:14,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:48:14,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,012 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 06:48:14,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,017 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:48:14,019 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:48:14,019 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:48:14,019 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:48:14,020 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (1/1) ... [2025-03-09 06:48:14,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,041 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) [2025-03-09 06:48:14,047 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 [2025-03-09 06:48:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:48:14,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:48:14,107 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:48:14,108 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:48:14,158 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-03-09 06:48:14,158 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:48:14,163 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:48:14,165 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:48:14,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:48:14 BoogieIcfgContainer [2025-03-09 06:48:14,166 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:48:14,166 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 06:48:14,166 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 06:48:14,170 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 06:48:14,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:48:14,171 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 06:48:13" (1/3) ... [2025-03-09 06:48:14,172 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38fa5731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:48:14, skipping insertion in model container [2025-03-09 06:48:14,172 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:48:14,172 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:48:13" (2/3) ... [2025-03-09 06:48:14,172 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38fa5731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:48:14, skipping insertion in model container [2025-03-09 06:48:14,172 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:48:14,172 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:48:14" (3/3) ... [2025-03-09 06:48:14,173 INFO L363 chiAutomizerObserver]: Analyzing ICFG easy1.c [2025-03-09 06:48:14,203 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 06:48:14,204 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 06:48:14,204 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 06:48:14,204 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 06:48:14,204 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 06:48:14,204 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 06:48:14,204 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 06:48:14,204 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 06:48:14,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-03-09 06:48:14,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 06:48:14,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:48:14,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:48:14,219 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:48:14,219 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 06:48:14,219 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 06:48:14,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-03-09 06:48:14,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 06:48:14,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:48:14,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:48:14,220 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 06:48:14,220 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 06:48:14,225 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := 0;main_~y~0#1 := 100;havoc main_#t~nondet0#1;main_~z~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-03-09 06:48:14,225 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 < 40;" "assume 0 == main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1;" [2025-03-09 06:48:14,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:48:14,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2025-03-09 06:48:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:48:14,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102803591] [2025-03-09 06:48:14,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:48:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:48:14,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:48:14,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:48:14,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:48:14,286 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:48:14,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:48:14,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:48:14,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:48:14,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:48:14,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:48:14,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2025-03-09 06:48:14,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:48:14,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858968147] [2025-03-09 06:48:14,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:48:14,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:48:14,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:48:14,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:48:14,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:48:14,310 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:48:14,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:48:14,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:48:14,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:48:14,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:48:14,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:48:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1137982, now seen corresponding path program 1 times [2025-03-09 06:48:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:48:14,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797071560] [2025-03-09 06:48:14,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:48:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:48:14,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:48:14,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:48:14,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:48:14,331 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:48:14,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:48:14,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:48:14,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:48:14,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:48:14,391 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:48:14,392 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:48:14,392 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:48:14,392 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:48:14,392 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-09 06:48:14,392 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,392 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:48:14,392 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:48:14,393 INFO L132 ssoRankerPreferences]: Filename of dumped script: easy1.c_Iteration1_Loop [2025-03-09 06:48:14,393 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:48:14,393 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:48:14,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,475 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:48:14,476 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-09 06:48:14,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,479 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) [2025-03-09 06:48:14,479 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 [2025-03-09 06:48:14,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:48:14,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:48:14,500 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:48:14,501 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:48:14,506 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 [2025-03-09 06:48:14,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,509 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) [2025-03-09 06:48:14,509 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 [2025-03-09 06:48:14,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:48:14,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:48:14,529 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-09 06:48:14,529 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-09 06:48:14,534 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 [2025-03-09 06:48:14,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,536 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) [2025-03-09 06:48:14,537 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 [2025-03-09 06:48:14,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-09 06:48:14,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:48:14,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-09 06:48:14,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,557 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) [2025-03-09 06:48:14,558 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 [2025-03-09 06:48:14,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-09 06:48:14,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-09 06:48:14,584 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-09 06:48:14,589 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 [2025-03-09 06:48:14,589 INFO L204 LassoAnalysis]: Preferences: [2025-03-09 06:48:14,589 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-09 06:48:14,589 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-09 06:48:14,589 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-09 06:48:14,589 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-09 06:48:14,589 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,589 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-09 06:48:14,589 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-09 06:48:14,589 INFO L132 ssoRankerPreferences]: Filename of dumped script: easy1.c_Iteration1_Loop [2025-03-09 06:48:14,589 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-09 06:48:14,589 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-09 06:48:14,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-09 06:48:14,648 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-09 06:48:14,651 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-09 06:48:14,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,653 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) [2025-03-09 06:48:14,655 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 [2025-03-09 06:48:14,657 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 [2025-03-09 06:48:14,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:48:14,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:48:14,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:48:14,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:48:14,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:48:14,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:48:14,685 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:48:14,691 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 [2025-03-09 06:48:14,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,693 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 06:48:14,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-09 06:48:14,694 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 [2025-03-09 06:48:14,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:48:14,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:48:14,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:48:14,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:48:14,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-09 06:48:14,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-09 06:48:14,710 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-09 06:48:14,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-09 06:48:14,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,719 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 06:48:14,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-09 06:48:14,721 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 [2025-03-09 06:48:14,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-09 06:48:14,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-09 06:48:14,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-09 06:48:14,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-09 06:48:14,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-09 06:48:14,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-09 06:48:14,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-09 06:48:14,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-09 06:48:14,738 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-09 06:48:14,741 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-09 06:48:14,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:48:14,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:48:14,744 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 06:48:14,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-09 06:48:14,747 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-09 06:48:14,747 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-09 06:48:14,747 INFO L474 LassoAnalysis]: Proved termination. [2025-03-09 06:48:14,748 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 79 Supporting invariants [] [2025-03-09 06:48:14,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-09 06:48:14,756 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-09 06:48:14,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:48:14,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:48:14,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:48:14,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:48:14,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 06:48:14,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:48:14,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 06:48:14,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 06:48:14,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:48:14,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:48:14,804 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:48:14,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:48:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:48:14,849 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-03-09 06:48:14,851 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2025-03-09 06:48:14,899 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 9 states and 12 transitions. Complement of second has 5 states. [2025-03-09 06:48:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-03-09 06:48:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2025-03-09 06:48:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2025-03-09 06:48:14,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2025-03-09 06:48:14,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:48:14,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2025-03-09 06:48:14,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:48:14,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2025-03-09 06:48:14,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-09 06:48:14,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2025-03-09 06:48:14,913 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-09 06:48:14,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2025-03-09 06:48:14,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-09 06:48:14,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-09 06:48:14,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-09 06:48:14,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 06:48:14,915 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 06:48:14,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 06:48:14,916 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 06:48:14,916 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 06:48:14,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-09 06:48:14,916 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-09 06:48:14,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-09 06:48:14,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 06:48:14 BoogieIcfgContainer [2025-03-09 06:48:14,924 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 06:48:14,924 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:48:14,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:48:14,925 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:48:14,925 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:48:14" (3/4) ... [2025-03-09 06:48:14,928 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 06:48:14,929 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:48:14,931 INFO L158 Benchmark]: Toolchain (without parser) took 1063.31ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 48.9MB in the end (delta: 63.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-09 06:48:14,931 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 226.5MB. Free memory was 145.7MB in the beginning and 145.4MB in the end (delta: 293.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:48:14,931 INFO L158 Benchmark]: CACSL2BoogieTranslator took 118.09ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 102.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:48:14,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.67ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 101.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:48:14,932 INFO L158 Benchmark]: Boogie Preprocessor took 18.11ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.1MB in the end (delta: 528.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:48:14,932 INFO L158 Benchmark]: IcfgBuilder took 146.71ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 91.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:48:14,932 INFO L158 Benchmark]: BuchiAutomizer took 757.63ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 49.4MB in the end (delta: 42.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:48:14,932 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 142.6MB. Free memory was 49.4MB in the beginning and 48.9MB in the end (delta: 453.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:48:14,935 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 226.5MB. Free memory was 145.7MB in the beginning and 145.4MB in the end (delta: 293.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 118.09ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 102.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 14.67ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 101.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.11ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.1MB in the end (delta: 528.2kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 146.71ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 91.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 757.63ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 49.4MB in the end (delta: 42.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 142.6MB. Free memory was 49.4MB in the beginning and 48.9MB in the end (delta: 453.5kB). 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) -2 * x) + 79) and consists of 3 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, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 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! [2025-03-09 06:48:14,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-09 06:48:15,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE