./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.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 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:00:58,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:00:58,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:00:58,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:00:58,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:00:58,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:00:58,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:00:58,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:00:58,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:00:58,724 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:00:58,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:00:58,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:00:58,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:00:58,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:00:58,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:00:58,726 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:00:58,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:00:58,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:00:58,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:00:58,728 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 -> 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 [2025-02-05 16:00:58,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:00:58,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:00:58,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:00:58,891 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:00:58,892 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:00:58,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2025-02-05 16:00:59,986 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a484da841/0430f5b7e6194e4a9e4929de3d737962/FLAGee1305e85 [2025-02-05 16:01:00,176 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:01:00,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2025-02-05 16:01:00,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a484da841/0430f5b7e6194e4a9e4929de3d737962/FLAGee1305e85 [2025-02-05 16:01:00,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a484da841/0430f5b7e6194e4a9e4929de3d737962 [2025-02-05 16:01:00,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:01:00,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:01:00,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:01:00,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:01:00,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:01:00,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207b3483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00, skipping insertion in model container [2025-02-05 16:01:00,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:01:00,308 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/recursified_loop-crafted/recursified_simple_vardep_1.c[1113,1126] [2025-02-05 16:01:00,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:01:00,319 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:01:00,324 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/recursified_loop-crafted/recursified_simple_vardep_1.c[1113,1126] [2025-02-05 16:01:00,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:01:00,334 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:01:00,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00 WrapperNode [2025-02-05 16:01:00,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:01:00,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:01:00,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:01:00,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:01:00,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,352 INFO L138 Inliner]: procedures = 14, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2025-02-05 16:01:00,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:01:00,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:01:00,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:01:00,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:01:00,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,365 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 4, 4, 5]. 33 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [2, 1, 1, 1]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-02-05 16:01:00,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:01:00,371 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:01:00,371 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:01:00,371 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:01:00,371 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (1/1) ... [2025-02-05 16:01:00,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:01:00,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:01:00,395 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) [2025-02-05 16:01:00,399 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 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:01:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_20_to_25_0 [2025-02-05 16:01:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_20_to_25_0 [2025-02-05 16:01:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 16:01:00,462 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:01:00,463 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:01:00,528 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-02-05 16:01:00,528 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:01:00,533 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:01:00,533 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:01:00,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:01:00 BoogieIcfgContainer [2025-02-05 16:01:00,533 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:01:00,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:01:00,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:01:00,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:01:00,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:01:00" (1/3) ... [2025-02-05 16:01:00,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da85b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:01:00, skipping insertion in model container [2025-02-05 16:01:00,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:01:00" (2/3) ... [2025-02-05 16:01:00,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da85b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:01:00, skipping insertion in model container [2025-02-05 16:01:00,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:01:00" (3/3) ... [2025-02-05 16:01:00,540 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_simple_vardep_1.c [2025-02-05 16:01:00,549 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:01:00,550 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_simple_vardep_1.c that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-05 16:01:00,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:01:00,586 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;@4f22d787, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:01:00,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:01:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-05 16:01:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-05 16:01:00,591 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:01:00,592 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:01:00,592 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:01:00,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:01:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1099904782, now seen corresponding path program 1 times [2025-02-05 16:01:00,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:01:00,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160321639] [2025-02-05 16:01:00,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:01:00,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:01:00,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-05 16:01:00,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-05 16:01:00,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:01:00,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:01:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:01:01,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:01:01,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160321639] [2025-02-05 16:01:01,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160321639] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:01:01,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:01:01,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:01:01,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144329394] [2025-02-05 16:01:01,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:01:01,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:01:01,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:01:01,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:01:01,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:01:01,446 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:01:01,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:01:01,509 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2025-02-05 16:01:01,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:01:01,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-05 16:01:01,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:01:01,513 INFO L225 Difference]: With dead ends: 32 [2025-02-05 16:01:01,513 INFO L226 Difference]: Without dead ends: 13 [2025-02-05 16:01:01,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:01:01,516 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:01:01,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:01:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-02-05 16:01:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-05 16:01:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:01:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-02-05 16:01:01,534 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2025-02-05 16:01:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:01:01,534 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-02-05 16:01:01,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:01:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-02-05 16:01:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-05 16:01:01,535 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:01:01,535 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:01:01,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 16:01:01,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:01:01,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:01:01,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2095483546, now seen corresponding path program 1 times [2025-02-05 16:01:01,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:01:01,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198342570] [2025-02-05 16:01:01,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:01:01,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:01:01,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-05 16:01:01,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-05 16:01:01,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:01:01,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:01:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:01:02,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:01:02,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198342570] [2025-02-05 16:01:02,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198342570] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:01:02,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366102759] [2025-02-05 16:01:02,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:01:02,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:01:02,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:01:02,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:01:02,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 16:01:02,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-05 16:01:02,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-05 16:01:02,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:01:02,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:01:02,444 WARN L254 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 101 conjuncts are in the unsatisfiable core [2025-02-05 16:01:02,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:01:02,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-05 16:01:02,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-05 16:01:02,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2025-02-05 16:01:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:01:02,813 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 16:01:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 16:01:03,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366102759] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 16:01:03,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 16:01:03,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 6] total 18 [2025-02-05 16:01:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035357969] [2025-02-05 16:01:03,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 16:01:03,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-05 16:01:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:01:03,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-05 16:01:03,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2025-02-05 16:01:03,005 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 18 states, 15 states have (on average 1.6) internal successors, (24), 13 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:01:03,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:01:03,176 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2025-02-05 16:01:03,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-05 16:01:03,177 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.6) internal successors, (24), 13 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-05 16:01:03,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:01:03,177 INFO L225 Difference]: With dead ends: 17 [2025-02-05 16:01:03,177 INFO L226 Difference]: Without dead ends: 0 [2025-02-05 16:01:03,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2025-02-05 16:01:03,178 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:01:03,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 28 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:01:03,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-05 16:01:03,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-05 16:01:03,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2025-02-05 16:01:03,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-05 16:01:03,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2025-02-05 16:01:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:01:03,179 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-05 16:01:03,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.6) internal successors, (24), 13 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:01:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-05 16:01:03,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-05 16:01:03,181 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_20_to_25_0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 16:01:03,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 16:01:03,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:01:03,388 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 16:01:03,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-05 16:01:03,597 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 16:01:03,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 04:01:03 BoogieIcfgContainer [2025-02-05 16:01:03,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 16:01:03,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 16:01:03,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 16:01:03,604 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 16:01:03,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:01:00" (3/4) ... [2025-02-05 16:01:03,606 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-05 16:01:03,609 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_20_to_25_0 [2025-02-05 16:01:03,611 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-05 16:01:03,611 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-05 16:01:03,612 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-05 16:01:03,612 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-05 16:01:03,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-05 16:01:03,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-05 16:01:03,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 16:01:03,669 INFO L158 Benchmark]: Toolchain (without parser) took 3476.73ms. Allocated memory was 587.2MB in the beginning and 167.8MB in the end (delta: -419.4MB). Free memory was 550.4MB in the beginning and 61.5MB in the end (delta: 488.9MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2025-02-05 16:01:03,671 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 16:01:03,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.81ms. Allocated memory was 587.2MB in the beginning and 167.8MB in the end (delta: -419.4MB). Free memory was 550.0MB in the beginning and 119.8MB in the end (delta: 430.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 16:01:03,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.07ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 118.8MB in the end (delta: 977.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 16:01:03,672 INFO L158 Benchmark]: Boogie Preprocessor took 17.93ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 117.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 16:01:03,672 INFO L158 Benchmark]: IcfgBuilder took 163.00ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 106.2MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 16:01:03,672 INFO L158 Benchmark]: TraceAbstraction took 3067.93ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 66.8MB in the end (delta: 38.5MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2025-02-05 16:01:03,672 INFO L158 Benchmark]: Witness Printer took 65.09ms. Allocated memory is still 167.8MB. Free memory was 66.8MB in the beginning and 61.5MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 16:01:03,673 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.81ms. Allocated memory was 587.2MB in the beginning and 167.8MB in the end (delta: -419.4MB). Free memory was 550.0MB in the beginning and 119.8MB in the end (delta: 430.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.07ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 118.8MB in the end (delta: 977.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.93ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 117.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 163.00ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 106.2MB in the end (delta: 11.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3067.93ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 66.8MB in the end (delta: 38.5MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * Witness Printer took 65.09ms. Allocated memory is still 167.8MB. Free memory was 66.8MB in the beginning and 61.5MB in the end (delta: 5.3MB). There was no memory consumed. 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: 26]: 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 SizeOfPredicates, 27 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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! [2025-02-05 16:01:03,688 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