./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mine2017-ex4.8.i --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-lit/mine2017-ex4.8.i -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 ee63462f1ec886f4aa9c5663162640144e173530e57636655ca95f3d6ab0ae72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:28:40,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:28:40,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:28:40,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:28:40,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:28:40,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:28:40,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:28:40,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:28:40,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:28:40,243 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:28:40,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:28:40,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:28:40,244 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:28:40,245 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:28:40,245 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:28:40,245 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:28:40,245 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:28:40,245 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:28:40,246 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:28:40,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:28:40,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:28:40,249 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:28:40,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:28:40,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:28:40,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:28:40,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:28:40,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:28:40,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:28:40,250 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:28:40,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:28:40,251 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:28:40,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:28:40,251 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:28:40,251 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:28:40,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:28:40,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:28:40,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:28:40,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:28:40,252 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:28:40,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee63462f1ec886f4aa9c5663162640144e173530e57636655ca95f3d6ab0ae72 [2024-10-13 17:28:40,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:28:40,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:28:40,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:28:40,485 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:28:40,486 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:28:40,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mine2017-ex4.8.i [2024-10-13 17:28:41,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:28:42,008 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:28:42,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mine2017-ex4.8.i [2024-10-13 17:28:42,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0448838a2/8f1c0756829c4dc8a4ae9ac26eb56c2f/FLAGe2872a700 [2024-10-13 17:28:42,423 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0448838a2/8f1c0756829c4dc8a4ae9ac26eb56c2f [2024-10-13 17:28:42,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:28:42,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:28:42,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:28:42,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:28:42,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:28:42,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef81f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42, skipping insertion in model container [2024-10-13 17:28:42,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:28:42,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:28:42,632 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:28:42,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:28:42,661 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:28:42,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42 WrapperNode [2024-10-13 17:28:42,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:28:42,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:28:42,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:28:42,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:28:42,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,688 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 37 [2024-10-13 17:28:42,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:28:42,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:28:42,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:28:42,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:28:42,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,707 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 17:28:42,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:28:42,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:28:42,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:28:42,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:28:42,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (1/1) ... [2024-10-13 17:28:42,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:28:42,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:28:42,745 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 17:28:42,747 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 17:28:42,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:28:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:28:42,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:28:42,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:28:42,827 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:28:42,829 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:28:42,945 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-13 17:28:42,945 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:28:42,963 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:28:42,964 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 17:28:42,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:28:42 BoogieIcfgContainer [2024-10-13 17:28:42,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:28:42,966 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:28:42,966 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:28:42,969 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:28:42,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:28:42,971 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:28:42" (1/3) ... [2024-10-13 17:28:42,972 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a71d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:28:42, skipping insertion in model container [2024-10-13 17:28:42,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:28:42,972 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:28:42" (2/3) ... [2024-10-13 17:28:42,973 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a71d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:28:42, skipping insertion in model container [2024-10-13 17:28:42,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:28:42,973 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:28:42" (3/3) ... [2024-10-13 17:28:42,974 INFO L332 chiAutomizerObserver]: Analyzing ICFG mine2017-ex4.8.i [2024-10-13 17:28:43,030 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:28:43,030 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:28:43,030 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:28:43,031 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:28:43,031 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:28:43,031 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:28:43,031 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:28:43,032 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:28:43,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 17:28:43,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-10-13 17:28:43,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:43,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:43,056 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 17:28:43,057 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:28:43,057 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:28:43,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 17:28:43,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-10-13 17:28:43,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:43,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:43,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 17:28:43,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:28:43,068 INFO L745 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_~v~0#1;main_~v~0#1 := 0; 13#L20-2true [2024-10-13 17:28:43,068 INFO L747 eck$LassoCheckResult]: Loop: 13#L20-2true havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 15#L17-1true assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L13true assume !(0 == __VERIFIER_assert_~cond#1); 5#L13-3true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L13-4true assume !(0 == __VERIFIER_assert_~cond#1); 9#L13-7true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 17#L20true assume !(0 == main_~v~0#1); 13#L20-2true [2024-10-13 17:28:43,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:43,074 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-13 17:28:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:43,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652882592] [2024-10-13 17:28:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:43,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:43,194 INFO L85 PathProgramCache]: Analyzing trace with hash -266161209, now seen corresponding path program 1 times [2024-10-13 17:28:43,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:43,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900954203] [2024-10-13 17:28:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:43,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:43,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1280135621, now seen corresponding path program 1 times [2024-10-13 17:28:43,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:43,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224561327] [2024-10-13 17:28:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:43,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:28:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:28:43,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:28:43,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224561327] [2024-10-13 17:28:43,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224561327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:28:43,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:28:43,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 17:28:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750322168] [2024-10-13 17:28:43,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:28:43,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:28:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:28:43,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:28:43,483 INFO L87 Difference]: Start difference. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2024-10-13 17:28:43,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:28:43,502 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2024-10-13 17:28:43,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 32 transitions. [2024-10-13 17:28:43,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-13 17:28:43,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2024-10-13 17:28:43,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-13 17:28:43,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-13 17:28:43,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2024-10-13 17:28:43,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:28:43,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-13 17:28:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2024-10-13 17:28:43,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-13 17:28:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 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 17:28:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-10-13 17:28:43,570 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-13 17:28:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:28:43,574 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-13 17:28:43,574 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:28:43,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2024-10-13 17:28:43,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-13 17:28:43,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:28:43,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:28:43,576 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:28:43,576 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:28:43,576 INFO L745 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 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(22, 2); 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_~v~0#1;main_~v~0#1 := 0; 69#L20-2 havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 75#L17-1 assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 74#L13 assume !(0 == __VERIFIER_assert_~cond#1); 73#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 72#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 71#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 70#L20 assume 0 == main_~v~0#1;main_~v~0#1 := 1; 64#L20-2 [2024-10-13 17:28:43,576 INFO L747 eck$LassoCheckResult]: Loop: 64#L20-2 havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 65#L17-1 assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 62#L13 assume !(0 == __VERIFIER_assert_~cond#1); 63#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 66#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 60#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 61#L20 assume !(0 == main_~v~0#1); 64#L20-2 [2024-10-13 17:28:43,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:43,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1280135619, now seen corresponding path program 1 times [2024-10-13 17:28:43,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:43,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200439045] [2024-10-13 17:28:43,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:43,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:43,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:43,601 INFO L85 PathProgramCache]: Analyzing trace with hash -266161209, now seen corresponding path program 2 times [2024-10-13 17:28:43,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:43,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915152355] [2024-10-13 17:28:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:43,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:28:43,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1693695035, now seen corresponding path program 1 times [2024-10-13 17:28:43,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:28:43,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346557109] [2024-10-13 17:28:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:28:43,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:28:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:28:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:28:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:28:43,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:28:43 BoogieIcfgContainer [2024-10-13 17:28:43,897 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:28:43,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:28:43,898 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:28:43,898 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:28:43,899 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:28:42" (3/4) ... [2024-10-13 17:28:43,900 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:28:43,938 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:28:43,939 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:28:43,939 INFO L158 Benchmark]: Toolchain (without parser) took 1513.09ms. Allocated memory is still 176.2MB. Free memory was 104.0MB in the beginning and 113.0MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:43,939 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:43,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.76ms. Allocated memory is still 176.2MB. Free memory was 103.7MB in the beginning and 92.0MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 17:28:43,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.22ms. Allocated memory is still 176.2MB. Free memory was 92.0MB in the beginning and 90.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:43,940 INFO L158 Benchmark]: Boogie Preprocessor took 29.44ms. Allocated memory is still 176.2MB. Free memory was 90.6MB in the beginning and 89.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:28:43,941 INFO L158 Benchmark]: RCFGBuilder took 246.05ms. Allocated memory is still 176.2MB. Free memory was 89.0MB in the beginning and 78.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 17:28:43,941 INFO L158 Benchmark]: BuchiAutomizer took 931.85ms. Allocated memory is still 176.2MB. Free memory was 78.2MB in the beginning and 115.1MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:28:43,941 INFO L158 Benchmark]: Witness Printer took 40.67ms. Allocated memory is still 176.2MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:28:43,943 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.76ms. Allocated memory is still 176.2MB. Free memory was 103.7MB in the beginning and 92.0MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.22ms. Allocated memory is still 176.2MB. Free memory was 92.0MB in the beginning and 90.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.44ms. Allocated memory is still 176.2MB. Free memory was 90.6MB in the beginning and 89.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 246.05ms. Allocated memory is still 176.2MB. Free memory was 89.0MB in the beginning and 78.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 931.85ms. Allocated memory is still 176.2MB. Free memory was 78.2MB in the beginning and 115.1MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.67ms. Allocated memory is still 176.2MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.1MB). 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. 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: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int v = 0; VAL [v=0] [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND TRUE v == 0 [L21] v = 1 VAL [v=1] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND FALSE !(v == 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int v = 0; VAL [v=0] [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND TRUE v == 0 [L21] v = 1 VAL [v=1] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND FALSE !(v == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:28:43,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)