./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex03.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 b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:57:44,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:57:44,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-13 16:57:44,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:57:44,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:57:44,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:57:44,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:57:44,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:57:44,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:57:44,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:57:44,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:57:44,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:57:44,382 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:57:44,384 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 16:57:44,385 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 16:57:44,385 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 16:57:44,385 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 16:57:44,389 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 16:57:44,389 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 16:57:44,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:57:44,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 16:57:44,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:57:44,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:57:44,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 16:57:44,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 16:57:44,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 16:57:44,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:57:44,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:57:44,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:57:44,392 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 16:57:44,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:57:44,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:57:44,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:57:44,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:57:44,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:57:44,394 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 16:57:44,394 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b31ed4b72f45e3756b3103e506bd8e9f5ed0e7b74e7d7650bd4662c6650f610a [2024-10-13 16:57:44,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:57:44,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:57:44,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:57:44,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:57:44,710 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:57:44,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex03.c [2024-10-13 16:57:46,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:57:46,463 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:57:46,463 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex03.c [2024-10-13 16:57:46,473 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a67de9c/717ac92a0d074d42936155f138a3f9c1/FLAG0e4e262cb [2024-10-13 16:57:46,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a67de9c/717ac92a0d074d42936155f138a3f9c1 [2024-10-13 16:57:46,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:57:46,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:57:46,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:57:46,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:57:46,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:57:46,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2086e696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46, skipping insertion in model container [2024-10-13 16:57:46,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:57:46,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:57:46,691 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:57:46,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:57:46,713 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:57:46,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46 WrapperNode [2024-10-13 16:57:46,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:57:46,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:57:46,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:57:46,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:57:46,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,739 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2024-10-13 16:57:46,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:57:46,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:57:46,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:57:46,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:57:46,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,755 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 16:57:46,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:57:46,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:57:46,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:57:46,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:57:46,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (1/1) ... [2024-10-13 16:57:46,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:46,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:46,804 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) [2024-10-13 16:57:46,806 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 [2024-10-13 16:57:46,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:57:46,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:57:46,905 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:57:46,906 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:57:46,951 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-13 16:57:46,951 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:57:46,960 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:57:46,961 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 16:57:46,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:57:46 BoogieIcfgContainer [2024-10-13 16:57:46,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:57:46,962 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 16:57:46,962 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 16:57:46,966 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 16:57:46,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:57:46,967 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 04:57:46" (1/3) ... [2024-10-13 16:57:46,968 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66ada62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:57:46, skipping insertion in model container [2024-10-13 16:57:46,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:57:46,969 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:46" (2/3) ... [2024-10-13 16:57:46,969 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66ada62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:57:46, skipping insertion in model container [2024-10-13 16:57:46,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:57:46,969 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:57:46" (3/3) ... [2024-10-13 16:57:46,971 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex03.c [2024-10-13 16:57:47,031 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 16:57:47,031 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 16:57:47,031 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 16:57:47,031 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 16:57:47,032 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 16:57:47,032 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 16:57:47,032 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 16:57:47,033 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 16:57:47,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2024-10-13 16:57:47,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:57:47,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:47,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:47,056 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:57:47,056 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:57:47,056 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 16:57:47,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2024-10-13 16:57:47,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 16:57:47,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:47,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:47,059 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:57:47,059 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 16:57:47,066 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L10-2true [2024-10-13 16:57:47,066 INFO L747 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 < 0); 5#L10true assume !(-5 != main_~i~0#1); 3#L10-2true [2024-10-13 16:57:47,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:47,071 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-13 16:57:47,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:47,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939454827] [2024-10-13 16:57:47,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:47,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:47,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-10-13 16:57:47,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:47,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970001124] [2024-10-13 16:57:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:47,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:47,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:47,210 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-13 16:57:47,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:47,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365457763] [2024-10-13 16:57:47,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:47,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 04:57:47 BoogieIcfgContainer [2024-10-13 16:57:47,309 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 16:57:47,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:57:47,310 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:57:47,310 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:57:47,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:57:46" (3/4) ... [2024-10-13 16:57:47,312 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 16:57:47,350 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:57:47,351 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:57:47,352 INFO L158 Benchmark]: Toolchain (without parser) took 857.44ms. Allocated memory is still 180.4MB. Free memory was 113.0MB in the beginning and 127.8MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:47,353 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 107.0MB. Free memory was 78.1MB in the beginning and 78.0MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:47,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.49ms. Allocated memory is still 180.4MB. Free memory was 112.8MB in the beginning and 102.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:57:47,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.54ms. Allocated memory is still 180.4MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:47,357 INFO L158 Benchmark]: Boogie Preprocessor took 23.13ms. Allocated memory is still 180.4MB. Free memory was 100.7MB in the beginning and 99.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:57:47,357 INFO L158 Benchmark]: RCFGBuilder took 197.38ms. Allocated memory is still 180.4MB. Free memory was 99.3MB in the beginning and 145.2MB in the end (delta: -45.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-10-13 16:57:47,358 INFO L158 Benchmark]: BuchiAutomizer took 346.92ms. Allocated memory is still 180.4MB. Free memory was 145.2MB in the beginning and 129.2MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-13 16:57:47,358 INFO L158 Benchmark]: Witness Printer took 41.28ms. Allocated memory is still 180.4MB. Free memory was 129.2MB in the beginning and 127.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:57:47,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 107.0MB. Free memory was 78.1MB in the beginning and 78.0MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.49ms. Allocated memory is still 180.4MB. Free memory was 112.8MB in the beginning and 102.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.54ms. Allocated memory is still 180.4MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.13ms. Allocated memory is still 180.4MB. Free memory was 100.7MB in the beginning and 99.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 197.38ms. Allocated memory is still 180.4MB. Free memory was 99.3MB in the beginning and 145.2MB in the end (delta: -45.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 346.92ms. Allocated memory is still 180.4MB. Free memory was 145.2MB in the beginning and 129.2MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 41.28ms. Allocated memory is still 180.4MB. Free memory was 129.2MB in the beginning and 127.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i < 0 [L10] COND FALSE !(i != -5) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i < 0 [L10] COND FALSE !(i != -5) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 16:57:47,395 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)