./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/NonTermination3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 48c9605d 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/termination-crafted/NonTermination3-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash a0671ae6ff503095cbeea151b096da898df643465964474a4f3e3c55275f454c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:18:22,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:18:23,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:18:23,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:18:23,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:18:23,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:18:23,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:18:23,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:18:23,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:18:23,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:18:23,061 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:18:23,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:18:23,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:18:23,061 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:18:23,061 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:18:23,061 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:18:23,061 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:18:23,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:18:23,062 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:18:23,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:18:23,063 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:18:23,063 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:18:23,063 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:18:23,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:18:23,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:18:23,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:18:23,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:18:23,064 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:18:23,064 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0671ae6ff503095cbeea151b096da898df643465964474a4f3e3c55275f454c [2025-02-08 14:18:23,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:18:23,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:18:23,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:18:23,284 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:18:23,285 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:18:23,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2025-02-08 14:18:23,785 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9e8582d9/de05a9a75fd24d979ae67836a75e1ad2/FLAG92592f2da [2025-02-08 14:18:25,396 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:18:25,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2025-02-08 14:18:25,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9e8582d9/de05a9a75fd24d979ae67836a75e1ad2/FLAG92592f2da [2025-02-08 14:18:25,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c9e8582d9/de05a9a75fd24d979ae67836a75e1ad2 [2025-02-08 14:18:25,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:18:25,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:18:25,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:18:25,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:18:25,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:18:25,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65abf7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25, skipping insertion in model container [2025-02-08 14:18:25,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:18:25,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:18:25,841 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:18:25,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:18:25,865 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:18:25,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25 WrapperNode [2025-02-08 14:18:25,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:18:25,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:18:25,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:18:25,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:18:25,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,885 INFO L138 Inliner]: procedures = 8, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2025-02-08 14:18:25,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:18:25,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:18:25,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:18:25,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:18:25,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,898 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,906 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2025-02-08 14:18:25,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,913 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:18:25,919 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:18:25,919 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:18:25,919 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:18:25,920 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (1/1) ... [2025-02-08 14:18:25,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:25,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:25,945 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) [2025-02-08 14:18:25,947 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 [2025-02-08 14:18:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:18:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:18:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:18:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:18:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:18:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:18:26,007 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:18:26,009 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:18:26,089 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L11: call ULTIMATE.dealloc(main_~#a~0#1.base, main_~#a~0#1.offset);havoc main_~#a~0#1.base, main_~#a~0#1.offset; [2025-02-08 14:18:26,093 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-02-08 14:18:26,093 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:18:26,098 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:18:26,098 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:18:26,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:26 BoogieIcfgContainer [2025-02-08 14:18:26,098 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:18:26,099 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:18:26,099 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:18:26,102 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:18:26,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:26,103 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:18:25" (1/3) ... [2025-02-08 14:18:26,103 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ee11a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:18:26, skipping insertion in model container [2025-02-08 14:18:26,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:26,104 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:25" (2/3) ... [2025-02-08 14:18:26,104 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ee11a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:18:26, skipping insertion in model container [2025-02-08 14:18:26,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:26,104 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:26" (3/3) ... [2025-02-08 14:18:26,104 INFO L363 chiAutomizerObserver]: Analyzing ICFG NonTermination3-2.c [2025-02-08 14:18:26,132 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:18:26,133 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:18:26,133 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:18:26,133 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:18:26,133 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:18:26,133 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:18:26,133 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:18:26,133 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:18:26,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2025-02-08 14:18:26,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-02-08 14:18:26,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:26,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:26,147 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:18:26,147 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:26,147 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:18:26,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2025-02-08 14:18:26,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-02-08 14:18:26,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:26,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:26,147 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:18:26,147 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:26,150 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" [2025-02-08 14:18:26,150 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" [2025-02-08 14:18:26,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2025-02-08 14:18:26,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:26,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126878591] [2025-02-08 14:18:26,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:26,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:26,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:26,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:26,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:26,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:26,206 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:26,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:26,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:26,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:26,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:26,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:26,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:26,220 INFO L85 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2025-02-08 14:18:26,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:26,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191610796] [2025-02-08 14:18:26,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:26,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:26,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:26,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:26,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:26,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:26,229 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:26,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:26,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:26,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:26,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:26,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:26,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1408, now seen corresponding path program 1 times [2025-02-08 14:18:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:26,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216596847] [2025-02-08 14:18:26,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:26,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:26,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:18:26,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:18:26,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:26,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:26,249 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:26,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:18:26,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:18:26,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:26,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:26,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:26,443 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:18:26,443 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:18:26,443 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:18:26,443 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:18:26,443 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:18:26,443 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,444 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:18:26,444 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:18:26,444 INFO L132 ssoRankerPreferences]: Filename of dumped script: NonTermination3-2.c_Iteration1_Lasso [2025-02-08 14:18:26,444 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:18:26,444 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:18:26,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:18:26,734 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:18:26,736 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:18:26,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,741 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2025-02-08 14:18:26,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-08 14:18:26,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:26,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:26,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:18:26,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:26,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:26,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:26,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:18:26,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:18:26,777 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:26,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-08 14:18:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,792 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2025-02-08 14:18:26,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-08 14:18:26,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:26,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:26,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:18:26,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:26,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:26,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:26,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:18:26,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:18:26,815 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:26,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:26,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,827 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2025-02-08 14:18:26,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-08 14:18:26,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:26,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:26,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:18:26,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:26,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:26,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:26,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:18:26,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:18:26,840 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:26,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:26,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,852 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2025-02-08 14:18:26,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-08 14:18:26,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:26,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:26,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:26,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:26,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:26,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:26,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:26,893 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:26,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,901 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2025-02-08 14:18:26,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-08 14:18:26,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:26,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:26,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:26,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:26,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:26,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:26,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:26,924 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:26,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-08 14:18:26,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,932 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2025-02-08 14:18:26,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-08 14:18:26,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:26,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:26,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:26,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:26,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:26,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:26,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:26,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:18:26,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-08 14:18:26,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:26,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:26,983 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2025-02-08 14:18:26,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-08 14:18:26,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-08 14:18:27,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:18:27,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:18:27,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:18:27,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:18:27,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:18:27,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:18:27,022 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:18:27,039 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2025-02-08 14:18:27,041 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2025-02-08 14:18:27,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:27,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:27,046 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2025-02-08 14:18:27,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-08 14:18:27,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:18:27,063 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-02-08 14:18:27,063 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:18:27,064 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1, ULTIMATE.start_main_~n~0#1) = 19*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 - 8*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2025-02-08 14:18:27,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:27,076 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2025-02-08 14:18:27,083 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2025-02-08 14:18:27,084 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2025-02-08 14:18:27,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:27,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:27,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:18:27,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:27,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:27,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:27,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:18:27,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,139 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-08 14:18:27,140 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2025-02-08 14:18:27,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) Result 11 states and 16 transitions. Complement of second has 3 states. [2025-02-08 14:18:27,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-08 14:18:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2025-02-08 14:18:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2025-02-08 14:18:27,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 1 letters. Loop has 1 letters. [2025-02-08 14:18:27,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:27,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 2 letters. Loop has 1 letters. [2025-02-08 14:18:27,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:27,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-08 14:18:27,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:18:27,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2025-02-08 14:18:27,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 10 transitions. [2025-02-08 14:18:27,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-02-08 14:18:27,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2025-02-08 14:18:27,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2025-02-08 14:18:27,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:27,171 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:18:27,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2025-02-08 14:18:27,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2025-02-08 14:18:27,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:27,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2025-02-08 14:18:27,184 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-02-08 14:18:27,185 INFO L432 stractBuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2025-02-08 14:18:27,185 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:18:27,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2025-02-08 14:18:27,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:27,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:27,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:18:27,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:18:27,185 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume !(main_~n~0#1 < 10);havoc main_~n~0#1;" [2025-02-08 14:18:27,185 INFO L754 eck$LassoCheckResult]: Loop: "assume true;main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2025-02-08 14:18:27,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1407, now seen corresponding path program 1 times [2025-02-08 14:18:27,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341818950] [2025-02-08 14:18:27,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:18:27,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:18:27,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:18:27,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341818950] [2025-02-08 14:18:27,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341818950] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:18:27,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:18:27,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:18:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642725851] [2025-02-08 14:18:27,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:18:27,218 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:18:27,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,218 INFO L85 PathProgramCache]: Analyzing trace with hash 39656, now seen corresponding path program 1 times [2025-02-08 14:18:27,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114365823] [2025-02-08 14:18:27,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:27,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,224 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:27,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:27,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:18:27,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:18:27,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:18:27,302 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-08 14:18:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:18:27,307 INFO L93 Difference]: Finished difference Result 6 states and 8 transitions. [2025-02-08 14:18:27,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2025-02-08 14:18:27,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 8 transitions. [2025-02-08 14:18:27,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-02-08 14:18:27,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-02-08 14:18:27,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2025-02-08 14:18:27,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:27,307 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2025-02-08 14:18:27,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2025-02-08 14:18:27,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2025-02-08 14:18:27,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2025-02-08 14:18:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2025-02-08 14:18:27,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2025-02-08 14:18:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:18:27,309 INFO L432 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2025-02-08 14:18:27,309 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:18:27,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2025-02-08 14:18:27,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:27,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:27,309 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-08 14:18:27,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:18:27,309 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume !(main_~n~0#1 < 10);havoc main_~n~0#1;" [2025-02-08 14:18:27,309 INFO L754 eck$LassoCheckResult]: Loop: "assume true;main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2025-02-08 14:18:27,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash 43660, now seen corresponding path program 1 times [2025-02-08 14:18:27,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189549651] [2025-02-08 14:18:27,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:27,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:18:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189549651] [2025-02-08 14:18:27,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189549651] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:18:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991954783] [2025-02-08 14:18:27,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:27,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:18:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:27,346 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:18:27,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:18:27,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 14:18:27,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:18:27,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991954783] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:18:27,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:18:27,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-08 14:18:27,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637036280] [2025-02-08 14:18:27,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:18:27,393 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:18:27,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,393 INFO L85 PathProgramCache]: Analyzing trace with hash 39656, now seen corresponding path program 2 times [2025-02-08 14:18:27,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449076249] [2025-02-08 14:18:27,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:18:27,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,397 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,399 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,399 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:18:27,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,399 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:27,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:27,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:18:27,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:18:27,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:18:27,464 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2025-02-08 14:18:27,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:18:27,473 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2025-02-08 14:18:27,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2025-02-08 14:18:27,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions. [2025-02-08 14:18:27,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-02-08 14:18:27,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-02-08 14:18:27,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2025-02-08 14:18:27,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:27,474 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2025-02-08 14:18:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2025-02-08 14:18:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-02-08 14:18:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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) [2025-02-08 14:18:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2025-02-08 14:18:27,474 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2025-02-08 14:18:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:18:27,475 INFO L432 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2025-02-08 14:18:27,475 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:18:27,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2025-02-08 14:18:27,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:27,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:27,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 1, 1] [2025-02-08 14:18:27,476 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:18:27,476 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume !(main_~n~0#1 < 10);havoc main_~n~0#1;" [2025-02-08 14:18:27,476 INFO L754 eck$LassoCheckResult]: Loop: "assume true;main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2025-02-08 14:18:27,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1300717759, now seen corresponding path program 2 times [2025-02-08 14:18:27,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024304565] [2025-02-08 14:18:27,477 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:18:27,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,482 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-02-08 14:18:27,491 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:18:27,491 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:18:27,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:18:27,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024304565] [2025-02-08 14:18:27,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024304565] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:18:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982157917] [2025-02-08 14:18:27,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:18:27,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:18:27,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:27,558 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:18:27,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 14:18:27,592 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-02-08 14:18:27,600 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:18:27,600 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:18:27,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:27,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:18:27,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:18:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,613 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:18:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:27,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982157917] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:18:27,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:18:27,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:18:27,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873275325] [2025-02-08 14:18:27,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:18:27,655 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-08 14:18:27,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,655 INFO L85 PathProgramCache]: Analyzing trace with hash 39656, now seen corresponding path program 3 times [2025-02-08 14:18:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872206248] [2025-02-08 14:18:27,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:18:27,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,659 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,661 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,661 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:18:27,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,661 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:27,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:27,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:18:27,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:18:27,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:18:27,725 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-02-08 14:18:27,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:18:27,739 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2025-02-08 14:18:27,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2025-02-08 14:18:27,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 17 transitions. [2025-02-08 14:18:27,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-02-08 14:18:27,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-02-08 14:18:27,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2025-02-08 14:18:27,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:27,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-08 14:18:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2025-02-08 14:18:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-02-08 14:18:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-02-08 14:18:27,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-08 14:18:27,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 14:18:27,742 INFO L432 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-08 14:18:27,742 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-08 14:18:27,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2025-02-08 14:18:27,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:18:27,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:27,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:27,756 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 1, 1] [2025-02-08 14:18:27,756 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:18:27,756 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~pre2#1, main_~n~0#1, main_#t~mem3#1, main_#t~short4#1, main_#t~nondet5#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(40);main_~n~0#1 := 0;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume main_~n~0#1 < 10;havoc main_#t~nondet1#1;call write~int#0(main_#t~nondet1#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~n~0#1, 4);havoc main_#t~nondet1#1;main_#t~pre2#1 := 1 + main_~n~0#1;main_~n~0#1 := 1 + main_~n~0#1;havoc main_#t~pre2#1;" "assume !(main_~n~0#1 < 10);havoc main_~n~0#1;" [2025-02-08 14:18:27,756 INFO L754 eck$LassoCheckResult]: Loop: "assume true;main_#t~short4#1 := 0 <= main_~i~0#1 && main_~i~0#1 < 10;" "assume main_#t~short4#1;call main_#t~mem3#1 := read~int#0(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);main_#t~short4#1 := main_#t~mem3#1 >= 0;" "assume main_#t~short4#1;havoc main_#t~mem3#1;havoc main_#t~short4#1;call write~int#0(0, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet5#1;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;" [2025-02-08 14:18:27,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,756 INFO L85 PathProgramCache]: Analyzing trace with hash -434627169, now seen corresponding path program 3 times [2025-02-08 14:18:27,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789816398] [2025-02-08 14:18:27,756 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:18:27,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:27,774 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 6 equivalence classes. [2025-02-08 14:18:27,798 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:27,798 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:18:27,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,798 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:27,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:27,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:27,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:27,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,816 INFO L85 PathProgramCache]: Analyzing trace with hash 39656, now seen corresponding path program 4 times [2025-02-08 14:18:27,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531730735] [2025-02-08 14:18:27,817 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:18:27,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,819 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 3 statements into 2 equivalence classes. [2025-02-08 14:18:27,821 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,821 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:18:27,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,821 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:27,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:18:27,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:18:27,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:27,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:27,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1348415626, now seen corresponding path program 1 times [2025-02-08 14:18:27,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:27,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125408356] [2025-02-08 14:18:27,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:27,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:27,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:18:27,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:18:27,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,850 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:27,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:18:27,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:18:27,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:27,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:27,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:30,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:30,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:30,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:30,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:30,579 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:30,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:18:30,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:18:30,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:30,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:30,634 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-02-08 14:18:30,636 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-02-08 14:18:30,646 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-02-08 14:18:30,647 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-02-08 14:18:30,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:18:30 BoogieIcfgContainer [2025-02-08 14:18:30,649 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:18:30,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:18:30,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:18:30,650 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:18:30,650 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:26" (3/4) ... [2025-02-08 14:18:30,652 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-08 14:18:30,656 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-02-08 14:18:30,657 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-02-08 14:18:30,686 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:18:30,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:18:30,687 INFO L158 Benchmark]: Toolchain (without parser) took 4944.84ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 93.4MB in the end (delta: 22.8MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2025-02-08 14:18:30,688 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:30,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 124.32ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 105.7MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:18:30,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.33ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 965.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:30,689 INFO L158 Benchmark]: Boogie Preprocessor took 30.38ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:30,689 INFO L158 Benchmark]: IcfgBuilder took 179.39ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 92.5MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:18:30,689 INFO L158 Benchmark]: BuchiAutomizer took 4550.09ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 96.8MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:30,689 INFO L158 Benchmark]: Witness Printer took 36.38ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 93.4MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:18:30,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 124.32ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 105.7MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.33ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 965.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.38ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 179.39ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 92.5MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 4550.09ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 96.8MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.38ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 93.4MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function null and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 5 iterations. TraceHistogramMax:10. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 19 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital91 mio100 ax100 hnf100 lsp100 ukn59 mio100 lsp62 div100 bol100 ite100 ukn100 eq152 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L13] int n = 0; VAL [a={2:0}, n=0] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=1] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=2] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=3] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=4] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=5] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=6] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=7] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=8] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=9] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=10] [L13] COND FALSE !(n < 10) Loop: [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] EXPR a[i] [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L18] a[i] = 0 [L19] i = __VERIFIER_nondet_int() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L13] int n = 0; VAL [a={2:0}, n=0] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=1] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=2] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=3] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=4] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=5] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=6] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=7] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=8] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=9] [L13] COND TRUE n < 10 [L14] a[n] = __VERIFIER_nondet_int() [L13] ++n VAL [a={2:0}, n=10] [L13] COND FALSE !(n < 10) Loop: [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] EXPR a[i] [L17] 0 <= i && i < 10 && a[i] >= 0 [L17] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L18] a[i] = 0 [L19] i = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-08 14:18:30,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 14:18:30,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 14:18:31,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)