./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-nonlinear/bound-unconstrained.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/floats-nonlinear/bound-unconstrained.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad00e5072239abeb01a4bd441281195f8f9c10d5d349ac355ee2cfd51af3342b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 20:02:01,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 20:02:01,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 20:02:01,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 20:02:01,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 20:02:01,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 20:02:01,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 20:02:01,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 20:02:01,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 20:02:01,995 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 20:02:01,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 20:02:01,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 20:02:01,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 20:02:01,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 20:02:01,997 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 20:02:01,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 20:02:01,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 20:02:01,997 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 20:02:01,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 20:02:01,998 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 20:02:01,999 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 20:02:01,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 20:02:01,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 20:02:01,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 20:02:01,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:02:01,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 20:02:02,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 20:02:02,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 20:02:02,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 20:02:02,001 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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(G ! call(reach_error())) ) 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 -> ad00e5072239abeb01a4bd441281195f8f9c10d5d349ac355ee2cfd51af3342b [2025-02-07 20:02:02,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 20:02:02,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 20:02:02,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 20:02:02,295 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 20:02:02,295 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 20:02:02,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-nonlinear/bound-unconstrained.c [2025-02-07 20:02:03,573 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/331d41623/4efee7c5eba94eef944f969f5f5f96b5/FLAGad36730e8 [2025-02-07 20:02:03,835 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 20:02:03,836 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-nonlinear/bound-unconstrained.c [2025-02-07 20:02:03,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/331d41623/4efee7c5eba94eef944f969f5f5f96b5/FLAGad36730e8 [2025-02-07 20:02:03,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/331d41623/4efee7c5eba94eef944f969f5f5f96b5 [2025-02-07 20:02:03,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 20:02:03,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 20:02:03,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 20:02:03,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 20:02:03,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 20:02:03,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:02:03" (1/1) ... [2025-02-07 20:02:03,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eee7883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:03, skipping insertion in model container [2025-02-07 20:02:03,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:02:03" (1/1) ... [2025-02-07 20:02:03,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 20:02:04,043 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-nonlinear/bound-unconstrained.c[620,633] [2025-02-07 20:02:04,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:02:04,077 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 20:02:04,085 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-nonlinear/bound-unconstrained.c[620,633] [2025-02-07 20:02:04,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:02:04,112 INFO L204 MainTranslator]: Completed translation [2025-02-07 20:02:04,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04 WrapperNode [2025-02-07 20:02:04,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 20:02:04,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 20:02:04,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 20:02:04,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 20:02:04,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,147 INFO L138 Inliner]: procedures = 20, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 125 [2025-02-07 20:02:04,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 20:02:04,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 20:02:04,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 20:02:04,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 20:02:04,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,160 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,170 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2025-02-07 20:02:04,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,175 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 20:02:04,184 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 20:02:04,184 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 20:02:04,184 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 20:02:04,185 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (1/1) ... [2025-02-07 20:02:04,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:02:04,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 20:02:04,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 20:02:04,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure check_domain [2025-02-07 20:02:04,232 INFO L138 BoogieDeclarations]: Found implementation of procedure check_domain [2025-02-07 20:02:04,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 20:02:04,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 20:02:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-02-07 20:02:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-02-07 20:02:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 20:02:04,299 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 20:02:04,301 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 20:02:04,465 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54: havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~ret21#1;main_#res#1 := 0;#t~ret22#1 := main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~ret21#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~w~0#1;assume { :end_inline_main } true; [2025-02-07 20:02:04,466 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L54-1: main_#t~ret21#1 := solve_#res#1;havoc solve_#t~ret8#1, solve_#t~ret9#1, solve_#t~short10#1, solve_#t~ret11#1, solve_#t~short12#1, solve_#t~ret13#1, solve_#t~short14#1, solve_#t~ret15#1, solve_#t~short16#1, solve_~x1#1, solve_~x2#1, solve_~x3#1, solve_~x4#1;havoc solve_#in~x1#1, solve_#in~x2#1, solve_#in~x3#1, solve_#in~x4#1;assume { :end_inline_solve } true;assume -2147483648 <= main_#t~ret21#1 && main_#t~ret21#1 <= 2147483647;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_#t~ret21#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-07 20:02:04,466 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L32: call ULTIMATE.dealloc(check_diffs_~#di~0#1.base, check_diffs_~#di~0#1.offset);havoc check_diffs_~#di~0#1.base, check_diffs_~#di~0#1.offset;solve_#t~ret15#1 := check_diffs_#res#1;havoc check_diffs_#t~mem4#1, check_diffs_#t~mem5#1, check_diffs_#t~post6#1, check_diffs_~j~0#1, check_diffs_#t~post7#1, check_diffs_~i~0#1, check_diffs_~x1#1, check_diffs_~x2#1, check_diffs_~x3#1, check_diffs_~x4#1, check_diffs_~check_mark~0#1, check_diffs_~#di~0#1.base, check_diffs_~#di~0#1.offset;havoc check_diffs_#in~x1#1, check_diffs_#in~x2#1, check_diffs_#in~x3#1, check_diffs_#in~x4#1;assume { :end_inline_check_diffs } true;assume -2147483648 <= solve_#t~ret15#1 && solve_#t~ret15#1 <= 2147483647;solve_#t~short16#1 := 0 != solve_#t~ret15#1; [2025-02-07 20:02:04,466 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 20:02:04,466 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20: assume false;assume false; [2025-02-07 20:02:04,467 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L20: assume !false; [2025-02-07 20:02:04,467 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L18: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-07 20:02:04,467 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L18: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-07 20:02:04,480 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2025-02-07 20:02:04,481 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 20:02:04,489 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 20:02:04,489 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 20:02:04,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:02:04 BoogieIcfgContainer [2025-02-07 20:02:04,490 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 20:02:04,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 20:02:04,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 20:02:04,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 20:02:04,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 08:02:03" (1/3) ... [2025-02-07 20:02:04,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6e0211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:02:04, skipping insertion in model container [2025-02-07 20:02:04,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:02:04" (2/3) ... [2025-02-07 20:02:04,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6e0211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:02:04, skipping insertion in model container [2025-02-07 20:02:04,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:02:04" (3/3) ... [2025-02-07 20:02:04,499 INFO L128 eAbstractionObserver]: Analyzing ICFG bound-unconstrained.c [2025-02-07 20:02:04,511 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 20:02:04,513 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bound-unconstrained.c that has 2 procedures, 27 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-07 20:02:04,549 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 20:02:04,560 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@687d0947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 20:02:04,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 20:02:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 20:02:04,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 20:02:04,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 20:02:04,574 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 20:02:04,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 20:02:04,597 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 20:02:04,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 08:02:04 BoogieIcfgContainer [2025-02-07 20:02:04,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 20:02:04,606 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 20:02:04,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 20:02:04,606 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 20:02:04,607 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:02:04" (3/4) ... [2025-02-07 20:02:04,609 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 20:02:04,612 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure check_domain [2025-02-07 20:02:04,615 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-07 20:02:04,615 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-07 20:02:04,615 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 20:02:04,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 20:02:04,691 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 20:02:04,692 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 20:02:04,692 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 20:02:04,693 INFO L158 Benchmark]: Toolchain (without parser) took 804.28ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 70.9MB in the end (delta: 43.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 20:02:04,693 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:02:04,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.97ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 103.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:02:04,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.59ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:02:04,694 INFO L158 Benchmark]: Boogie Preprocessor took 34.64ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:02:04,694 INFO L158 Benchmark]: IcfgBuilder took 306.03ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 85.3MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 20:02:04,694 INFO L158 Benchmark]: TraceAbstraction took 113.23ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 77.4MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:02:04,695 INFO L158 Benchmark]: Witness Printer took 85.83ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 70.9MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:02:04,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.97ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 103.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.59ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.64ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 306.03ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 85.3MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 113.23ms. Allocated memory is still 142.6MB. Free memory was 84.4MB in the beginning and 77.4MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 85.83ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 70.9MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 20:02:04,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE