./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/phases_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loop-acceleration/phases_2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40774f15dea268138f2179cc2f832c9729515e75ef9c65e50e7b347c749bb02c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:27:05,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:27:05,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:27:05,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:27:05,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:27:05,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:27:05,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:27:05,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:27:05,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:27:05,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:27:05,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:27:05,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:27:05,310 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:27:05,311 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:27:05,311 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:27:05,311 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:27:05,311 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:27:05,312 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:27:05,312 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:27:05,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:27:05,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:27:05,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:27:05,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:27:05,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:27:05,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:27:05,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:27:05,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:27:05,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:27:05,315 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:27:05,315 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:27:05,315 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:27:05,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:27:05,315 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:27:05,316 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:27:05,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:27:05,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:27:05,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:27:05,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:27:05,317 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:27:05,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40774f15dea268138f2179cc2f832c9729515e75ef9c65e50e7b347c749bb02c [2024-10-13 17:27:05,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:27:05,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:27:05,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:27:05,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:27:05,522 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:27:05,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/phases_2-1.c [2024-10-13 17:27:06,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:27:06,986 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:27:06,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/phases_2-1.c [2024-10-13 17:27:06,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca5299fd/ac7fb30b04a0498599d121e7638be27e/FLAGde2c464a1 [2024-10-13 17:27:07,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca5299fd/ac7fb30b04a0498599d121e7638be27e [2024-10-13 17:27:07,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:27:07,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:27:07,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:27:07,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:27:07,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:27:07,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faad255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07, skipping insertion in model container [2024-10-13 17:27:07,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:27:07,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:27:07,189 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:27:07,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:27:07,211 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:27:07,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07 WrapperNode [2024-10-13 17:27:07,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:27:07,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:27:07,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:27:07,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:27:07,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,232 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2024-10-13 17:27:07,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:27:07,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:27:07,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:27:07,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:27:07,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,250 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 17:27:07,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:27:07,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:27:07,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:27:07,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:27:07,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (1/1) ... [2024-10-13 17:27:07,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:27:07,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:27:07,288 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 17:27:07,297 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 17:27:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:27:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:27:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:27:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:27:07,386 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:27:07,387 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:27:07,482 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-13 17:27:07,483 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:27:07,494 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:27:07,494 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 17:27:07,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:27:07 BoogieIcfgContainer [2024-10-13 17:27:07,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:27:07,496 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:27:07,496 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:27:07,499 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:27:07,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:27:07,499 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:27:07" (1/3) ... [2024-10-13 17:27:07,500 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@475c56ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:27:07, skipping insertion in model container [2024-10-13 17:27:07,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:27:07,500 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:07" (2/3) ... [2024-10-13 17:27:07,500 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@475c56ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:27:07, skipping insertion in model container [2024-10-13 17:27:07,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:27:07,502 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:27:07" (3/3) ... [2024-10-13 17:27:07,503 INFO L332 chiAutomizerObserver]: Analyzing ICFG phases_2-1.c [2024-10-13 17:27:07,548 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:27:07,548 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:27:07,548 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:27:07,549 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:27:07,549 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:27:07,549 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:27:07,549 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:27:07,550 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:27:07,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 17:27:07,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 17:27:07,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:27:07,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:27:07,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 17:27:07,573 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 17:27:07,573 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:27:07,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 17:27:07,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 17:27:07,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:27:07,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:27:07,575 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 17:27:07,575 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 17:27:07,581 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := 1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9#L21true assume !!(main_~y~0#1 % 4294967296 > 0); 3#L24-2true [2024-10-13 17:27:07,581 INFO L747 eck$LassoCheckResult]: Loop: 3#L24-2true assume !!(main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296); 11#L24true assume main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296) % 4294967296;main_~x~0#1 := main_~x~0#1 * main_~x~0#1; 3#L24-2true [2024-10-13 17:27:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:27:07,589 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-10-13 17:27:07,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:27:07,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606436420] [2024-10-13 17:27:07,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:07,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:27:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:07,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:07,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:27:07,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:27:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1476, now seen corresponding path program 1 times [2024-10-13 17:27:07,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:27:07,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887971363] [2024-10-13 17:27:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:07,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:27:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 17:27:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358580012] [2024-10-13 17:27:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:07,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 17:27:07,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:27:07,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 17:27:07,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 17:27:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:07,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:07,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:27:07,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:27:07,777 INFO L85 PathProgramCache]: Analyzing trace with hash 28695975, now seen corresponding path program 1 times [2024-10-13 17:27:07,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:27:07,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561861139] [2024-10-13 17:27:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:07,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:27:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 17:27:07,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953605533] [2024-10-13 17:27:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:07,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 17:27:07,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:27:07,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 17:27:07,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 17:27:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:07,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:07,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:27:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:08,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:08,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:27:08 BoogieIcfgContainer [2024-10-13 17:27:08,080 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:27:08,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:27:08,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:27:08,081 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:27:08,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:27:07" (3/4) ... [2024-10-13 17:27:08,082 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:27:08,108 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:27:08,108 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:27:08,110 INFO L158 Benchmark]: Toolchain (without parser) took 1102.55ms. Allocated memory is still 203.4MB. Free memory was 173.9MB in the beginning and 117.0MB in the end (delta: 57.0MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2024-10-13 17:27:08,110 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:27:08,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.47ms. Allocated memory is still 203.4MB. Free memory was 173.7MB in the beginning and 165.4MB in the end (delta: 8.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-10-13 17:27:08,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.68ms. Allocated memory is still 203.4MB. Free memory was 165.4MB in the beginning and 164.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:27:08,113 INFO L158 Benchmark]: Boogie Preprocessor took 22.95ms. Allocated memory is still 203.4MB. Free memory was 164.3MB in the beginning and 162.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:27:08,113 INFO L158 Benchmark]: RCFGBuilder took 238.10ms. Allocated memory is still 203.4MB. Free memory was 162.2MB in the beginning and 152.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 17:27:08,114 INFO L158 Benchmark]: BuchiAutomizer took 584.53ms. Allocated memory is still 203.4MB. Free memory was 152.6MB in the beginning and 118.2MB in the end (delta: 34.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-13 17:27:08,114 INFO L158 Benchmark]: Witness Printer took 27.75ms. Allocated memory is still 203.4MB. Free memory was 118.2MB in the beginning and 117.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:27:08,116 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.47ms. Allocated memory is still 203.4MB. Free memory was 173.7MB in the beginning and 165.4MB in the end (delta: 8.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.68ms. Allocated memory is still 203.4MB. Free memory was 165.4MB in the beginning and 164.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.95ms. Allocated memory is still 203.4MB. Free memory was 164.3MB in the beginning and 162.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 238.10ms. Allocated memory is still 203.4MB. Free memory was 162.2MB in the beginning and 152.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 584.53ms. Allocated memory is still 203.4MB. Free memory was 152.6MB in the beginning and 118.2MB in the end (delta: 34.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 27.75ms. Allocated memory is still 203.4MB. Free memory was 118.2MB in the beginning and 117.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:27:08,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 17:27:08,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 17:27:08,543 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)