./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/memsafety/test-0218.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/memsafety/test-0218.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 d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:21:55,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:21:55,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:21:55,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:21:55,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:21:55,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:21:55,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:21:55,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:21:55,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:21:55,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:21:55,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:21:55,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:21:55,228 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:21:55,228 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:21:55,230 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:21:55,230 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:21:55,231 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:21:55,231 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:21:55,231 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:21:55,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:21:55,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:21:55,236 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:21:55,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:21:55,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:21:55,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:21:55,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:21:55,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:21:55,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:21:55,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:21:55,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:21:55,237 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:21:55,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:21:55,238 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:21:55,238 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:21:55,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:21:55,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:21:55,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:21:55,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:21:55,241 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:21:55,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 [2024-11-12 21:21:55,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:21:55,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:21:55,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:21:55,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:21:55,545 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:21:55,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0218.i [2024-11-12 21:21:56,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:21:57,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:21:57,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0218.i [2024-11-12 21:21:57,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a460eaf5c/15166203fb184becb1bc231b4a31606e/FLAGcef5cb9cd [2024-11-12 21:21:57,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a460eaf5c/15166203fb184becb1bc231b4a31606e [2024-11-12 21:21:57,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:21:57,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:21:57,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:21:57,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:21:57,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:21:57,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:21:57" (1/1) ... [2024-11-12 21:21:57,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b868e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:57, skipping insertion in model container [2024-11-12 21:21:57,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:21:57" (1/1) ... [2024-11-12 21:21:57,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:21:57,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:21:57,977 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:21:58,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:21:58,071 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:21:58,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58 WrapperNode [2024-11-12 21:21:58,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:21:58,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:21:58,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:21:58,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:21:58,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,144 INFO L138 Inliner]: procedures = 181, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202 [2024-11-12 21:21:58,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:21:58,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:21:58,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:21:58,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:21:58,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,192 INFO L175 MemorySlicer]: Split 30 memory accesses to 2 slices as follows [2, 28]. 93 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 9 writes are split as follows [0, 9]. [2024-11-12 21:21:58,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:21:58,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:21:58,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:21:58,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:21:58,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (1/1) ... [2024-11-12 21:21:58,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:21:58,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:21:58,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:21:58,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-12 21:21:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-12 21:21:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-12 21:21:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 21:21:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 21:21:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 21:21:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 21:21:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 21:21:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:21:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 21:21:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:21:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:21:58,465 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:21:58,472 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:21:58,489 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-12 21:21:58,549 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-12 21:21:58,865 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-11-12 21:21:58,865 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:21:58,878 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:21:58,878 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-12 21:21:58,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:21:58 BoogieIcfgContainer [2024-11-12 21:21:58,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:21:58,879 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:21:58,880 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:21:58,882 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:21:58,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:21:58,883 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:21:57" (1/3) ... [2024-11-12 21:21:58,884 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd8866e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:21:58, skipping insertion in model container [2024-11-12 21:21:58,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:21:58,884 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:58" (2/3) ... [2024-11-12 21:21:58,884 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd8866e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:21:58, skipping insertion in model container [2024-11-12 21:21:58,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:21:58,884 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:21:58" (3/3) ... [2024-11-12 21:21:58,885 INFO L332 chiAutomizerObserver]: Analyzing ICFG test-0218.i [2024-11-12 21:21:58,928 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:21:58,928 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:21:58,928 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:21:58,928 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:21:58,928 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:21:58,928 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:21:58,928 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:21:58,929 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:21:58,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 53 states, 50 states have (on average 1.52) internal successors, (76), 50 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 21:21:58,953 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2024-11-12 21:21:58,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:21:58,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:21:58,963 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:21:58,964 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 21:21:58,964 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:21:58,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 53 states, 50 states have (on average 1.52) internal successors, (76), 50 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 21:21:58,967 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2024-11-12 21:21:58,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:21:58,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:21:58,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:21:58,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-12 21:21:58,975 INFO L747 eck$LassoCheckResult]: Stem: "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(12, 2);call #Ultimate.allocInit(8, 3);~#list~0.base, ~#list~0.offset := 3, 0;call write~init~$Pointer$#1(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$#1(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet28#1, main_#t~nondet29#1, main_#t~ret30#1, main_#t~nondet31#1, main_#t~ret32#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset;" [2024-11-12 21:21:58,975 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet28#1;" "assume !!(0 != main_#t~nondet28#1);havoc main_#t~nondet28#1;" "assume !true;" "assume !true;" [2024-11-12 21:21:58,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 1 times [2024-11-12 21:21:58,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:58,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149718175] [2024-11-12 21:21:58,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:58,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,092 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:59,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1701168, now seen corresponding path program 1 times [2024-11-12 21:21:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986169026] [2024-11-12 21:21:59,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:59,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:21:59,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:21:59,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986169026] [2024-11-12 21:21:59,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986169026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:21:59,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550112003] [2024-11-12 21:21:59,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:59,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:21:59,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:21:59,152 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) [2024-11-12 21:21:59,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 21:21:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:21:59,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-12 21:21:59,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:21:59,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:21:59,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550112003] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:21:59,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:21:59,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 21:21:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246637649] [2024-11-12 21:21:59,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:21:59,235 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:21:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:21:59,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 21:21:59,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 21:21:59,261 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.52) internal successors, (76), 50 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:21:59,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:21:59,270 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2024-11-12 21:21:59,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 72 transitions. [2024-11-12 21:21:59,275 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2024-11-12 21:21:59,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 49 states and 68 transitions. [2024-11-12 21:21:59,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-11-12 21:21:59,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2024-11-12 21:21:59,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 68 transitions. [2024-11-12 21:21:59,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:21:59,281 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-11-12 21:21:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 68 transitions. [2024-11-12 21:21:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-12 21:21:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 46 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 21:21:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2024-11-12 21:21:59,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-11-12 21:21:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 21:21:59,306 INFO L426 stractBuchiCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-11-12 21:21:59,306 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:21:59,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 68 transitions. [2024-11-12 21:21:59,307 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2024-11-12 21:21:59,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:21:59,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:21:59,308 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 21:21:59,308 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-12 21:21:59,308 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(8, 3);~#list~0.base, ~#list~0.offset := 3, 0;call write~init~$Pointer$#1(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$#1(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet28#1, main_#t~nondet29#1, main_#t~ret30#1, main_#t~nondet31#1, main_#t~ret32#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset;" [2024-11-12 21:21:59,309 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet28#1;" "assume !!(0 != main_#t~nondet28#1);havoc main_#t~nondet28#1;" "havoc main_#t~nondet29#1;" "assume !(0 != main_#t~nondet29#1);havoc main_#t~nondet29#1;" "havoc main_#t~nondet31#1;" "assume !(0 != main_#t~nondet31#1);havoc main_#t~nondet31#1;" [2024-11-12 21:21:59,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1539, now seen corresponding path program 2 times [2024-11-12 21:21:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599328092] [2024-11-12 21:21:59,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:59,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,325 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:59,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:59,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1632021452, now seen corresponding path program 1 times [2024-11-12 21:21:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672162866] [2024-11-12 21:21:59,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:59,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,342 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:59,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:59,350 INFO L85 PathProgramCache]: Analyzing trace with hash 813082702, now seen corresponding path program 1 times [2024-11-12 21:21:59,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:59,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265465038] [2024-11-12 21:21:59,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:59,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,363 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,702 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:59,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:21:59 BoogieIcfgContainer [2024-11-12 21:21:59,738 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:21:59,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:21:59,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:21:59,738 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:21:59,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:21:58" (3/4) ... [2024-11-12 21:21:59,740 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:21:59,774 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:21:59,774 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:21:59,776 INFO L158 Benchmark]: Toolchain (without parser) took 2277.94ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 98.9MB in the end (delta: 11.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-11-12 21:21:59,776 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:21:59,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.09ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 85.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-12 21:21:59,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.71ms. Allocated memory is still 144.7MB. Free memory was 85.9MB in the beginning and 83.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:21:59,779 INFO L158 Benchmark]: Boogie Preprocessor took 78.17ms. Allocated memory is still 144.7MB. Free memory was 83.2MB in the beginning and 79.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:21:59,781 INFO L158 Benchmark]: RCFGBuilder took 654.67ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 94.9MB in the end (delta: -15.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 21:21:59,782 INFO L158 Benchmark]: BuchiAutomizer took 858.22ms. Allocated memory is still 144.7MB. Free memory was 94.9MB in the beginning and 100.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:21:59,782 INFO L158 Benchmark]: Witness Printer took 36.28ms. Allocated memory is still 144.7MB. Free memory was 100.1MB in the beginning and 98.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:21:59,784 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.09ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 85.9MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.71ms. Allocated memory is still 144.7MB. Free memory was 85.9MB in the beginning and 83.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.17ms. Allocated memory is still 144.7MB. Free memory was 83.2MB in the beginning and 79.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 654.67ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 94.9MB in the end (delta: -15.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 858.22ms. Allocated memory is still 144.7MB. Free memory was 94.9MB in the beginning and 100.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.28ms. Allocated memory is still 144.7MB. Free memory was 100.1MB in the beginning and 98.9MB 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 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 2 locations. The remainder module has 49 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 0.0s. 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, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 72 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 723]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L722] static list_t list; [L722] static list_t list; [L722] static list_t list; VAL [list={3:0}] Loop: [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 723]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L722] static list_t list; [L722] static list_t list; [L722] static list_t list; VAL [list={3:0}] Loop: [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 21:21:59,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 21:22:00,014 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)