./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Madrid.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Madrid.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 a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:51:56,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:51:56,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:51:56,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:51:56,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:51:56,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:51:56,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:51:56,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:51:56,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:51:56,991 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:51:56,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:51:56,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:51:56,992 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:51:56,993 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:51:56,993 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:51:56,993 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:51:56,994 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:51:56,995 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:51:56,996 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:51:56,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:51:56,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:51:56,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:51:57,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:51:57,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:51:57,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:51:57,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:51:57,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:51:57,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:51:57,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:51:57,001 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:51:57,002 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:51:57,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:51:57,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:51:57,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:51:57,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:51:57,003 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:51:57,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2024-11-12 20:51:57,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:51:57,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:51:57,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:51:57,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:51:57,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:51:57,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Madrid.c [2024-11-12 20:51:58,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:51:58,876 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:51:58,877 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Madrid.c [2024-11-12 20:51:58,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b429a0104/ac6814e8601f4c6f9961435ca0059982/FLAG47c59c101 [2024-11-12 20:51:59,287 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b429a0104/ac6814e8601f4c6f9961435ca0059982 [2024-11-12 20:51:59,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:51:59,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:51:59,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:51:59,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:51:59,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:51:59,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695fd4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59, skipping insertion in model container [2024-11-12 20:51:59,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:51:59,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:51:59,469 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:51:59,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:51:59,493 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:51:59,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59 WrapperNode [2024-11-12 20:51:59,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:51:59,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:51:59,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:51:59,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:51:59,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,515 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-11-12 20:51:59,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:51:59,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:51:59,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:51:59,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:51:59,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,525 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,529 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:51:59,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:51:59,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:51:59,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:51:59,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:51:59,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (1/1) ... [2024-11-12 20:51:59,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:51:59,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:51:59,564 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) [2024-11-12 20:51:59,566 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 [2024-11-12 20:51:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:51:59,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:51:59,692 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:51:59,695 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:51:59,736 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-12 20:51:59,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:51:59,751 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:51:59,752 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 20:51:59,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:51:59 BoogieIcfgContainer [2024-11-12 20:51:59,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:51:59,754 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:51:59,754 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:51:59,758 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:51:59,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:51:59,759 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:51:59" (1/3) ... [2024-11-12 20:51:59,760 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@688b9886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:51:59, skipping insertion in model container [2024-11-12 20:51:59,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:51:59,760 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:51:59" (2/3) ... [2024-11-12 20:51:59,762 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@688b9886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:51:59, skipping insertion in model container [2024-11-12 20:51:59,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:51:59,762 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:51:59" (3/3) ... [2024-11-12 20:51:59,765 INFO L332 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2024-11-12 20:51:59,834 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:51:59,834 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:51:59,835 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:51:59,835 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:51:59,835 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:51:59,835 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:51:59,836 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:51:59,836 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:51:59,842 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) [2024-11-12 20:51:59,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-12 20:51:59,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:51:59,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:51:59,864 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:51:59,865 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-12 20:51:59,865 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:51:59,866 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) [2024-11-12 20:51:59,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-12 20:51:59,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:51:59,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:51:59,868 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:51:59,868 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-12 20:51:59,875 INFO L747 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_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := 7;" [2024-11-12 20:51:59,875 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;main_~x~0#1 := 2;" [2024-11-12 20:51:59,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:51:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:51:59,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:51:59,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202208937] [2024-11-12 20:51:59,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:51:59,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:51:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:59,974 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:51:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:59,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:51:59,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:51:59,993 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2024-11-12 20:51:59,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:51:59,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115171008] [2024-11-12 20:51:59,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:51:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:51:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:51:59,999 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:00,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:00,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:52:00,003 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-12 20:52:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:52:00,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247364760] [2024-11-12 20:52:00,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:52:00,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:52:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:00,014 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:00,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:52:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:00,067 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:52:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:52:00,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:52:00 BoogieIcfgContainer [2024-11-12 20:52:00,083 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:52:00,084 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:52:00,084 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:52:00,084 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:52:00,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:51:59" (3/4) ... [2024-11-12 20:52:00,087 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 20:52:00,118 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:52:00,118 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:52:00,120 INFO L158 Benchmark]: Toolchain (without parser) took 828.77ms. Allocated memory is still 174.1MB. Free memory was 103.9MB in the beginning and 63.4MB in the end (delta: 40.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,120 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 82.9MB in the end (delta: 155.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.84ms. Allocated memory is still 174.1MB. Free memory was 103.9MB in the beginning and 92.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.33ms. Allocated memory is still 174.1MB. Free memory was 92.8MB in the beginning and 91.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,122 INFO L158 Benchmark]: Boogie Preprocessor took 19.82ms. Allocated memory is still 174.1MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:52:00,122 INFO L158 Benchmark]: RCFGBuilder took 216.18ms. Allocated memory is still 174.1MB. Free memory was 90.1MB in the beginning and 81.1MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,123 INFO L158 Benchmark]: BuchiAutomizer took 329.68ms. Allocated memory is still 174.1MB. Free memory was 80.8MB in the beginning and 65.0MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,124 INFO L158 Benchmark]: Witness Printer took 34.08ms. Allocated memory is still 174.1MB. Free memory was 65.0MB in the beginning and 63.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:52:00,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 82.9MB in the end (delta: 155.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.84ms. Allocated memory is still 174.1MB. Free memory was 103.9MB in the beginning and 92.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.33ms. Allocated memory is still 174.1MB. Free memory was 92.8MB in the beginning and 91.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.82ms. Allocated memory is still 174.1MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.18ms. Allocated memory is still 174.1MB. Free memory was 90.1MB in the beginning and 81.1MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 329.68ms. Allocated memory is still 174.1MB. Free memory was 80.8MB in the beginning and 65.0MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 34.08ms. Allocated memory is still 174.1MB. Free memory was 65.0MB in the beginning and 63.4MB in the end (delta: 1.6MB). 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: 14]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 20:52:00,173 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)