./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 c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/memsafety/test-0218.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0.3.0-?-c00e63d-m [2025-02-06 19:28:24,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:28:24,635 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:28:24,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:28:24,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:28:24,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:28:24,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:28:24,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:28:24,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:28:24,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:28:24,652 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:28:24,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:28:24,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:28:24,652 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:28:24,652 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:28:24,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:28:24,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:28:24,654 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:28:24,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:28:24,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:28:24,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:28:24,655 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:28:24,655 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 [2025-02-06 19:28:24,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:28:24,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:28:24,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:28:24,830 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:28:24,830 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:28:24,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0218.i [2025-02-06 19:28:25,982 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/99f8a3160/27f318f6590644e58b99977f4eefe3f7/FLAG555e08dd1 [2025-02-06 19:28:26,272 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:28:26,273 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/memsafety/test-0218.i [2025-02-06 19:28:26,291 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/99f8a3160/27f318f6590644e58b99977f4eefe3f7/FLAG555e08dd1 [2025-02-06 19:28:26,315 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/99f8a3160/27f318f6590644e58b99977f4eefe3f7 [2025-02-06 19:28:26,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:28:26,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:28:26,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:28:26,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:28:26,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:28:26,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622871af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26, skipping insertion in model container [2025-02-06 19:28:26,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:28:26,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:28:26,637 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:28:26,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:28:26,707 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:28:26,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26 WrapperNode [2025-02-06 19:28:26,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:28:26,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:28:26,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:28:26,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:28:26,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,735 INFO L138 Inliner]: procedures = 181, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2025-02-06 19:28:26,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:28:26,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:28:26,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:28:26,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:28:26,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,760 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]. [2025-02-06 19:28:26,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,766 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:28:26,770 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:28:26,771 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:28:26,771 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:28:26,771 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (1/1) ... [2025-02-06 19:28:26,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:28:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:28:26,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:28:26,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 19:28:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 19:28:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 19:28:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 19:28:26,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 19:28:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 19:28:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:28:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 19:28:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 19:28:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:28:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:28:26,893 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:28:26,894 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:28:27,192 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2025-02-06 19:28:27,192 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:28:27,200 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:28:27,200 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:28:27,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:28:27 BoogieIcfgContainer [2025-02-06 19:28:27,201 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:28:27,201 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:28:27,201 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:28:27,206 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:28:27,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:28:27,207 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:28:26" (1/3) ... [2025-02-06 19:28:27,207 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aef2ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:28:27, skipping insertion in model container [2025-02-06 19:28:27,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:28:27,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:28:26" (2/3) ... [2025-02-06 19:28:27,208 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@aef2ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:28:27, skipping insertion in model container [2025-02-06 19:28:27,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:28:27,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:28:27" (3/3) ... [2025-02-06 19:28:27,209 INFO L363 chiAutomizerObserver]: Analyzing ICFG test-0218.i [2025-02-06 19:28:27,241 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:28:27,242 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:28:27,242 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:28:27,242 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:28:27,242 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:28:27,242 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:28:27,242 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:28:27,242 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:28:27,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 states, 49 states have (on average 1.510204081632653) internal successors, (74), 49 states have internal predecessors, (74), 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) [2025-02-06 19:28:27,258 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2025-02-06 19:28:27,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:28:27,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:28:27,262 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:28:27,262 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-06 19:28:27,262 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:28:27,263 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 states, 49 states have (on average 1.510204081632653) internal successors, (74), 49 states have internal predecessors, (74), 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) [2025-02-06 19:28:27,264 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2025-02-06 19:28:27,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:28:27,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:28:27,265 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:28:27,265 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-06 19:28:27,269 INFO L752 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$#1(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet28#1, main_#t~nondet29#1, main_#t~ret30#1, main_#t~nondet31#1, main_#t~ret32#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset;" [2025-02-06 19:28:27,270 INFO L754 eck$LassoCheckResult]: Loop: "assume true;havoc main_#t~nondet28#1;" "assume 0 != main_#t~nondet28#1;havoc main_#t~nondet28#1;" "assume !true;" "assume !true;" [2025-02-06 19:28:27,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:28:27,273 INFO L85 PathProgramCache]: Analyzing trace with hash 4192, now seen corresponding path program 1 times [2025-02-06 19:28:27,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:28:27,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379523965] [2025-02-06 19:28:27,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:28:27,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:28:27,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:28:27,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:28:27,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,333 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:28:27,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:28:27,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:28:27,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:28:27,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:28:27,355 INFO L85 PathProgramCache]: Analyzing trace with hash 3938286, now seen corresponding path program 1 times [2025-02-06 19:28:27,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:28:27,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763890557] [2025-02-06 19:28:27,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:28:27,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:28:27,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:28:27,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:28:27,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:28:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:28:27,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:28:27,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763890557] [2025-02-06 19:28:27,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763890557] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:28:27,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:28:27,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 19:28:27,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385567529] [2025-02-06 19:28:27,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:28:27,389 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:28:27,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:28:27,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 19:28:27,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 19:28:27,408 INFO L87 Difference]: Start difference. First operand has 52 states, 49 states have (on average 1.510204081632653) internal successors, (74), 49 states have internal predecessors, (74), 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) [2025-02-06 19:28:27,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:28:27,416 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2025-02-06 19:28:27,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 71 transitions. [2025-02-06 19:28:27,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2025-02-06 19:28:27,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 68 transitions. [2025-02-06 19:28:27,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2025-02-06 19:28:27,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2025-02-06 19:28:27,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 68 transitions. [2025-02-06 19:28:27,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:28:27,428 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-02-06 19:28:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 68 transitions. [2025-02-06 19:28:27,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-02-06 19:28:27,461 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) [2025-02-06 19:28:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2025-02-06 19:28:27,463 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-02-06 19:28:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 19:28:27,467 INFO L432 stractBuchiCegarLoop]: Abstraction has 49 states and 68 transitions. [2025-02-06 19:28:27,467 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:28:27,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 68 transitions. [2025-02-06 19:28:27,468 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2025-02-06 19:28:27,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:28:27,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:28:27,468 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:28:27,468 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-02-06 19:28:27,469 INFO L752 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;" [2025-02-06 19:28:27,469 INFO L754 eck$LassoCheckResult]: Loop: "assume true;havoc main_#t~nondet28#1;" "assume 0 != main_#t~nondet28#1;havoc main_#t~nondet28#1;" "assume true;havoc main_#t~nondet29#1;" "assume !(0 != main_#t~nondet29#1);havoc main_#t~nondet29#1;" "assume true;havoc main_#t~nondet31#1;" "assume !(0 != main_#t~nondet31#1);havoc main_#t~nondet31#1;" [2025-02-06 19:28:27,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:28:27,469 INFO L85 PathProgramCache]: Analyzing trace with hash 4192, now seen corresponding path program 2 times [2025-02-06 19:28:27,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:28:27,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092890627] [2025-02-06 19:28:27,469 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:28:27,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:28:27,480 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:28:27,483 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:28:27,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:28:27,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,486 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:28:27,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:28:27,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:28:27,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:28:27,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:28:27,495 INFO L85 PathProgramCache]: Analyzing trace with hash -510258597, now seen corresponding path program 1 times [2025-02-06 19:28:27,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:28:27,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465928414] [2025-02-06 19:28:27,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:28:27,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:28:27,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:28:27,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:28:27,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,502 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:28:27,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:28:27,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:28:27,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:28:27,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:28:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash -424009862, now seen corresponding path program 1 times [2025-02-06 19:28:27,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:28:27,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871245196] [2025-02-06 19:28:27,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:28:27,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:28:27,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 19:28:27,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 19:28:27,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,519 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:28:27,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 19:28:27,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 19:28:27,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:28:27,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:28:27,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:28:27,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,699 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:28:27,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:28:27,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:28:27,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:28:27,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:28:27,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:28:27 BoogieIcfgContainer [2025-02-06 19:28:27,722 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:28:27,722 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:28:27,722 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:28:27,722 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:28:27,723 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:28:27" (3/4) ... [2025-02-06 19:28:27,724 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:28:27,742 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:28:27,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:28:27,743 INFO L158 Benchmark]: Toolchain (without parser) took 1421.82ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 81.4MB in the end (delta: 27.7MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2025-02-06 19:28:27,743 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:28:27,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.40ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 88.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 19:28:27,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.86ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 85.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:28:27,744 INFO L158 Benchmark]: Boogie Preprocessor took 34.25ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 82.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:28:27,744 INFO L158 Benchmark]: IcfgBuilder took 430.23ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 55.7MB in the end (delta: 26.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 19:28:27,744 INFO L158 Benchmark]: BuchiAutomizer took 520.57ms. Allocated memory is still 142.6MB. Free memory was 55.7MB in the beginning and 83.6MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:28:27,745 INFO L158 Benchmark]: Witness Printer took 20.34ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:28:27,746 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 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.40ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 88.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.86ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 85.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.25ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 82.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 430.23ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 55.7MB in the end (delta: 26.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 520.57ms. Allocated memory is still 142.6MB. Free memory was 55.7MB in the beginning and 83.6MB in the end (delta: -27.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 20.34ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. 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 0.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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, 71 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, 71 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() [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND TRUE __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() [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-06 19:28:27,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)