./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:11:30,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:11:30,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-12 00:11:30,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:11:30,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:11:30,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:11:30,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:11:30,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:11:30,960 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:11:30,961 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:11:30,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:11:30,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:11:30,963 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:11:30,963 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:11:30,964 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:11:30,965 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:11:30,965 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:11:30,966 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:11:30,966 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:11:30,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:11:30,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:11:30,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:11:30,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:11:30,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:11:30,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:11:30,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:11:30,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:11:30,972 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:11:30,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:11:30,973 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:11:30,973 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:11:30,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:11:30,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:11:30,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:11:30,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:11:30,977 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:11:30,977 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2024-10-12 00:11:31,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:11:31,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:11:31,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:11:31,290 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:11:31,291 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:11:31,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-10-12 00:11:32,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:11:33,129 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:11:33,130 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-10-12 00:11:33,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/82b3a7e15/81f578ebabb14817af780e730e4e61a9/FLAG58517d812 [2024-10-12 00:11:33,507 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/82b3a7e15/81f578ebabb14817af780e730e4e61a9 [2024-10-12 00:11:33,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:11:33,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:11:33,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:33,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:11:33,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:11:33,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dbe635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33, skipping insertion in model container [2024-10-12 00:11:33,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:11:33,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:33,726 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:11:33,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:11:33,770 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:11:33,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33 WrapperNode [2024-10-12 00:11:33,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:11:33,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:33,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:11:33,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:11:33,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,809 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-10-12 00:11:33,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:11:33,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:11:33,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:11:33,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:11:33,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,845 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-10-12 00:11:33,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:11:33,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:11:33,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:11:33,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:11:33,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (1/1) ... [2024-10-12 00:11:33,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:11:33,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:11:33,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:11:33,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:11:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:11:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:11:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:11:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 00:11:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 00:11:34,053 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:11:34,055 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:11:34,157 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-10-12 00:11:34,161 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:11:34,175 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:11:34,176 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 00:11:34,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:34 BoogieIcfgContainer [2024-10-12 00:11:34,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:11:34,177 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:11:34,177 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:11:34,181 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:11:34,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:34,182 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:11:33" (1/3) ... [2024-10-12 00:11:34,183 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@684ae5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:34, skipping insertion in model container [2024-10-12 00:11:34,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:34,183 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:11:33" (2/3) ... [2024-10-12 00:11:34,184 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@684ae5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:11:34, skipping insertion in model container [2024-10-12 00:11:34,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:11:34,184 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:34" (3/3) ... [2024-10-12 00:11:34,186 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2024-10-12 00:11:34,252 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:11:34,252 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:11:34,252 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:11:34,252 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:11:34,252 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:11:34,253 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:11:34,254 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:11:34,254 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:11:34,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-12 00:11:34,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:11:34,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:34,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:34,289 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:11:34,290 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:11:34,290 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:11:34,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-12 00:11:34,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:11:34,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:11:34,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:11:34,293 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:11:34,293 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:11:34,302 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem1#1, main_#t~mem2#1, main_#t~nondet3#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);havoc main_#t~nondet0#1;call write~int#0(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 6#L13-3true [2024-10-12 00:11:34,303 INFO L747 eck$LassoCheckResult]: Loop: 6#L13-3true call main_#t~mem1#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 3#L13-1true assume !!(main_#t~mem1#1 >= 0);havoc main_#t~mem1#1;call main_#t~mem2#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int#0(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;havoc main_#t~nondet3#1;call write~int#0(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1; 6#L13-3true [2024-10-12 00:11:34,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-12 00:11:34,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:34,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828848038] [2024-10-12 00:11:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:34,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:34,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2024-10-12 00:11:34,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95574652] [2024-10-12 00:11:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:34,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:11:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-12 00:11:34,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:11:34,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808894991] [2024-10-12 00:11:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:11:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:11:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:11:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:11:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:11:34,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:11:34 BoogieIcfgContainer [2024-10-12 00:11:34,978 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:11:34,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:11:34,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:11:34,981 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:11:34,982 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:11:34" (3/4) ... [2024-10-12 00:11:34,984 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-12 00:11:35,022 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:11:35,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:11:35,024 INFO L158 Benchmark]: Toolchain (without parser) took 1512.10ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 97.6MB in the beginning and 172.9MB in the end (delta: -75.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:35,025 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 155.2MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:35,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 86.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 00:11:35,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.53ms. Allocated memory is still 155.2MB. Free memory was 86.2MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:35,026 INFO L158 Benchmark]: Boogie Preprocessor took 55.58ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:35,027 INFO L158 Benchmark]: RCFGBuilder took 309.44ms. Allocated memory is still 155.2MB. Free memory was 82.9MB in the beginning and 73.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:11:35,027 INFO L158 Benchmark]: BuchiAutomizer took 801.16ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 73.2MB in the beginning and 174.5MB in the end (delta: -101.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:11:35,028 INFO L158 Benchmark]: Witness Printer took 43.42ms. Allocated memory is still 224.4MB. Free memory was 174.5MB in the beginning and 172.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:11:35,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 155.2MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 155.2MB. Free memory was 97.4MB in the beginning and 86.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.53ms. Allocated memory is still 155.2MB. Free memory was 86.2MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.58ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.44ms. Allocated memory is still 155.2MB. Free memory was 82.9MB in the beginning and 73.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 801.16ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 73.2MB in the beginning and 174.5MB in the end (delta: -101.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.42ms. Allocated memory is still 224.4MB. Free memory was 174.5MB in the beginning and 172.9MB 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 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-12 00:11:35,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)