./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_hard-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_hard-u.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27783f29349ebae8401558a8bc17fafd87092d54a86e2af0abb3d67f703ff6c0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 05:01:03,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 05:01:03,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 05:01:03,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 05:01:03,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 05:01:03,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 05:01:03,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 05:01:03,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 05:01:03,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 05:01:03,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 05:01:03,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 05:01:03,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 05:01:03,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 05:01:03,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 05:01:03,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 05:01:03,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 05:01:03,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 05:01:03,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 05:01:03,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 05:01:03,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 05:01:03,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 05:01:03,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 05:01:03,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 05:01:03,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 05:01:03,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 05:01:03,999 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 05:01:03,999 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 05:01:03,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 05:01:04,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 05:01:04,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 05:01:04,000 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 05:01:04,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 05:01:04,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 05:01:04,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 05:01:04,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:01:04,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 05:01:04,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 05:01:04,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 05:01:04,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 05:01:04,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 05:01:04,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 05:01:04,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 05:01:04,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 05:01:04,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 05:01:04,004 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27783f29349ebae8401558a8bc17fafd87092d54a86e2af0abb3d67f703ff6c0 [2024-11-17 05:01:04,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 05:01:04,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 05:01:04,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 05:01:04,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 05:01:04,283 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 05:01:04,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_hard-u.c [2024-11-17 05:01:05,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 05:01:06,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 05:01:06,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_hard-u.c [2024-11-17 05:01:06,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2718967f/f85d8d3d8dee4c7a8c0d4e74b3900985/FLAG89bb6686d [2024-11-17 05:01:06,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2718967f/f85d8d3d8dee4c7a8c0d4e74b3900985 [2024-11-17 05:01:06,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 05:01:06,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 05:01:06,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 05:01:06,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 05:01:06,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 05:01:06,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d22c48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06, skipping insertion in model container [2024-11-17 05:01:06,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,408 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 05:01:06,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:01:06,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 05:01:06,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:01:06,693 INFO L204 MainTranslator]: Completed translation [2024-11-17 05:01:06,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06 WrapperNode [2024-11-17 05:01:06,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 05:01:06,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 05:01:06,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 05:01:06,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 05:01:06,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,736 INFO L138 Inliner]: procedures = 17, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-11-17 05:01:06,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 05:01:06,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 05:01:06,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 05:01:06,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 05:01:06,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,777 INFO L175 MemorySlicer]: Split 49 memory accesses to 7 slices as follows [2, 12, 9, 6, 5, 8, 7]. 24 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 12 writes are split as follows [0, 3, 3, 2, 1, 2, 1]. [2024-11-17 05:01:06,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,785 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 05:01:06,794 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 05:01:06,794 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 05:01:06,794 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 05:01:06,795 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (1/1) ... [2024-11-17 05:01:06,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:01:06,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:01:06,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 05:01:06,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 05:01:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 05:01:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-17 05:01:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_51_0 [2024-11-17 05:01:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_51_0 [2024-11-17 05:01:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 05:01:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_38_0 [2024-11-17 05:01:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_38_0 [2024-11-17 05:01:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 05:01:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 05:01:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 05:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 05:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 05:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-17 05:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-17 05:01:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 05:01:06,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 05:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 05:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 05:01:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 05:01:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 05:01:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 05:01:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-17 05:01:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-17 05:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 05:01:06,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 05:01:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 05:01:06,980 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 05:01:06,982 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 05:01:07,209 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L110: call ULTIMATE.dealloc(main_~#A~0#1.base, main_~#A~0#1.offset);havoc main_~#A~0#1.base, main_~#A~0#1.offset;call ULTIMATE.dealloc(main_~#B~0#1.base, main_~#B~0#1.offset);havoc main_~#B~0#1.base, main_~#B~0#1.offset;call ULTIMATE.dealloc(main_~#r~0#1.base, main_~#r~0#1.offset);havoc main_~#r~0#1.base, main_~#r~0#1.offset;call ULTIMATE.dealloc(main_~#d~0#1.base, main_~#d~0#1.offset);havoc main_~#d~0#1.base, main_~#d~0#1.offset;call ULTIMATE.dealloc(main_~#p~0#1.base, main_~#p~0#1.offset);havoc main_~#p~0#1.base, main_~#p~0#1.offset;call ULTIMATE.dealloc(main_~#q~0#1.base, main_~#q~0#1.offset);havoc main_~#q~0#1.base, main_~#q~0#1.offset; [2024-11-17 05:01:07,247 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-17 05:01:07,247 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 05:01:07,260 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 05:01:07,260 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 05:01:07,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:01:07 BoogieIcfgContainer [2024-11-17 05:01:07,261 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 05:01:07,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 05:01:07,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 05:01:07,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 05:01:07,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:01:06" (1/3) ... [2024-11-17 05:01:07,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edf8019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:01:07, skipping insertion in model container [2024-11-17 05:01:07,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:01:06" (2/3) ... [2024-11-17 05:01:07,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edf8019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:01:07, skipping insertion in model container [2024-11-17 05:01:07,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:01:07" (3/3) ... [2024-11-17 05:01:07,270 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_hard-u.c [2024-11-17 05:01:07,286 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 05:01:07,286 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2024-11-17 05:01:07,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edf8019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 05:01:07, skipping insertion in model container [2024-11-17 05:01:07,287 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 05:01:07,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 05:01:07,288 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 05:01:07,288 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 05:01:07,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:01:07" (3/3) ... [2024-11-17 05:01:07,291 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 05:01:07,295 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_31_to_38_0 [2024-11-17 05:01:07,295 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-17 05:01:07,296 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_41_to_51_0 [2024-11-17 05:01:07,300 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-17 05:01:07,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-17 05:01:07,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 05:01:07,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 05:01:07,436 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 05:01:07,437 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 05:01:07,437 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 05:01:07,439 INFO L158 Benchmark]: Toolchain (without parser) took 1065.10ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 72.0MB in the end (delta: 2.6MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,439 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 05:01:07,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.57ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 105.5MB in the end (delta: -31.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.05ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,440 INFO L158 Benchmark]: Boogie Preprocessor took 55.80ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,440 INFO L158 Benchmark]: IcfgBuilder took 467.68ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 80.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,441 INFO L158 Benchmark]: TraceAbstraction took 24.16ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,441 INFO L158 Benchmark]: Witness Printer took 148.88ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 72.0MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 05:01:07,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.57ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 105.5MB in the end (delta: -31.0MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.05ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.80ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 467.68ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 80.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 24.16ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 148.88ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 72.0MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2024-11-17 05:01:07,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE