./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test24-2.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/ldv-regression/test24-2.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 ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 20:03:19,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 20:03:19,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 20:03:19,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 20:03:19,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 20:03:19,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 20:03:19,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 20:03:19,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 20:03:19,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 20:03:19,161 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 20:03:19,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 20:03:19,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 20:03:19,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 20:03:19,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 20:03:19,162 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 20:03:19,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:03:19,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 20:03:19,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 20:03:19,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 20:03:19,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 20:03:19,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 20:03:19,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 20:03:19,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 20:03:19,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 20:03:19,164 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 -> ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 [2025-02-07 20:03:19,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 20:03:19,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 20:03:19,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 20:03:19,363 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 20:03:19,363 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 20:03:19,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test24-2.c [2025-02-07 20:03:20,526 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12abb546b/b818c0a2f2d4445aa52221e38729398f/FLAG22a67bd8d [2025-02-07 20:03:20,812 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 20:03:20,818 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-regression/test24-2.c [2025-02-07 20:03:20,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12abb546b/b818c0a2f2d4445aa52221e38729398f/FLAG22a67bd8d [2025-02-07 20:03:21,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12abb546b/b818c0a2f2d4445aa52221e38729398f [2025-02-07 20:03:21,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 20:03:21,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 20:03:21,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 20:03:21,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 20:03:21,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 20:03:21,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b122b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21, skipping insertion in model container [2025-02-07 20:03:21,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 20:03:21,242 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/ldv-regression/test24-2.c[807,820] [2025-02-07 20:03:21,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:03:21,250 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 20:03:21,261 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/ldv-regression/test24-2.c[807,820] [2025-02-07 20:03:21,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 20:03:21,278 INFO L204 MainTranslator]: Completed translation [2025-02-07 20:03:21,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21 WrapperNode [2025-02-07 20:03:21,279 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 20:03:21,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 20:03:21,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 20:03:21,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 20:03:21,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,298 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2025-02-07 20:03:21,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 20:03:21,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 20:03:21,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 20:03:21,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 20:03:21,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,311 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,321 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 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-02-07 20:03:21,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 20:03:21,335 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 20:03:21,335 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 20:03:21,335 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 20:03:21,336 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (1/1) ... [2025-02-07 20:03:21,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 20:03:21,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 20:03:21,365 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 20:03:21,368 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 20:03:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 20:03:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 20:03:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 20:03:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 20:03:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-07 20:03:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-07 20:03:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 20:03:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 20:03:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 20:03:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 20:03:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 20:03:21,440 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 20:03:21,442 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 20:03:21,565 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L32: assume 0 == main_#t~ret12#1;havoc main_#t~ret12#1; [2025-02-07 20:03:21,565 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L32: assume !(0 == main_#t~ret12#1);havoc main_#t~ret12#1; [2025-02-07 20:03:21,566 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L17: call ULTIMATE.dealloc(main_~#ad1~0#1.base, main_~#ad1~0#1.offset);havoc main_~#ad1~0#1.base, main_~#ad1~0#1.offset; [2025-02-07 20:03:21,566 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L12: havoc check_#t~mem4#1;main_#t~ret12#1 := check_#res#1;havoc check_#t~mem4#1, check_~ad1#1.base, check_~ad1#1.offset, check_~b#1;havoc check_#in~ad1#1.base, check_#in~ad1#1.offset, check_#in~b#1;assume { :end_inline_check } true;assume -2147483648 <= main_#t~ret12#1 && main_#t~ret12#1 <= 2147483647; [2025-02-07 20:03:21,566 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L39: assume false;assume false;main_#res#1 := 1;call ULTIMATE.dealloc(main_~#ad1~0#1.base, main_~#ad1~0#1.offset);havoc main_~#ad1~0#1.base, main_~#ad1~0#1.offset; [2025-02-07 20:03:21,566 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L39: assume !false; [2025-02-07 20:03:21,574 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-02-07 20:03:21,574 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 20:03:21,580 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 20:03:21,581 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 20:03:21,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:03:21 BoogieIcfgContainer [2025-02-07 20:03:21,582 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 20:03:21,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 20:03:21,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 20:03:21,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 20:03:21,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 08:03:21" (1/3) ... [2025-02-07 20:03:21,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770fb20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:03:21, skipping insertion in model container [2025-02-07 20:03:21,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 08:03:21" (2/3) ... [2025-02-07 20:03:21,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770fb20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 08:03:21, skipping insertion in model container [2025-02-07 20:03:21,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:03:21" (3/3) ... [2025-02-07 20:03:21,591 INFO L128 eAbstractionObserver]: Analyzing ICFG test24-2.c [2025-02-07 20:03:21,604 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 20:03:21,605 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test24-2.c that has 1 procedures, 11 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-07 20:03:21,644 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 20:03:21,654 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;@54158a5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 20:03:21,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 20:03:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2025-02-07 20:03:21,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 20:03:21,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 20:03:21,668 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 20:03:21,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2025-02-07 20:03:21,683 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 20:03:21,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 08:03:21 BoogieIcfgContainer [2025-02-07 20:03:21,690 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 20:03:21,691 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 20:03:21,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 20:03:21,692 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 20:03:21,692 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 08:03:21" (3/4) ... [2025-02-07 20:03:21,694 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 20:03:21,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-07 20:03:21,700 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-07 20:03:21,700 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 20:03:21,701 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 20:03:21,761 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 20:03:21,761 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 20:03:21,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 20:03:21,762 INFO L158 Benchmark]: Toolchain (without parser) took 651.12ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 70.8MB in the end (delta: 39.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 20:03:21,762 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 226.5MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:03:21,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.61ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 98.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:03:21,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.29ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.7MB in the end (delta: 715.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 20:03:21,762 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 96.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:03:21,762 INFO L158 Benchmark]: IcfgBuilder took 247.25ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 83.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:03:21,763 INFO L158 Benchmark]: TraceAbstraction took 106.63ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 76.6MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:03:21,763 INFO L158 Benchmark]: Witness Printer took 69.38ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 70.8MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 20:03:21,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 226.5MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.61ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 98.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.29ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.7MB in the end (delta: 715.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 96.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 247.25ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 83.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 106.63ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 76.6MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 69.38ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 70.8MB in the end (delta: 5.8MB). 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: 39]: 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 1 procedures, 11 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=11occurred 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 20:03:21,776 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