./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --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/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:11:03,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:11:04,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:11:04,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:11:04,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:11:04,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:11:04,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:11:04,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:11:04,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:11:04,044 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:11:04,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:11:04,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:11:04,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:11:04,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:11:04,045 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:11:04,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:11:04,046 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:11:04,047 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:11:04,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:11:04,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:11:04,047 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 -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2025-02-08 01:11:04,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:11:04,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:11:04,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:11:04,294 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:11:04,294 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:11:04,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-02-08 01:11:05,438 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ffec37803/e36e8d7f072d4974930329ae427af610/FLAG6b1f0d4d4 [2025-02-08 01:11:05,747 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:11:05,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-02-08 01:11:05,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ffec37803/e36e8d7f072d4974930329ae427af610/FLAG6b1f0d4d4 [2025-02-08 01:11:06,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ffec37803/e36e8d7f072d4974930329ae427af610 [2025-02-08 01:11:06,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:11:06,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:11:06,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:11:06,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:11:06,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:11:06,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35167270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06, skipping insertion in model container [2025-02-08 01:11:06,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:11:06,211 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/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2025-02-08 01:11:06,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:11:06,356 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:11:06,363 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/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2025-02-08 01:11:06,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:11:06,411 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:11:06,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06 WrapperNode [2025-02-08 01:11:06,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:11:06,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:11:06,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:11:06,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:11:06,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,458 INFO L138 Inliner]: procedures = 165, calls = 46, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 162 [2025-02-08 01:11:06,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:11:06,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:11:06,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:11:06,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:11:06,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,505 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2025-02-08 01:11:06,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,509 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:11:06,517 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:11:06,517 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:11:06,517 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:11:06,517 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (1/1) ... [2025-02-08 01:11:06,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:11:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:11:06,553 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) [2025-02-08 01:11:06,565 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 [2025-02-08 01:11:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 01:11:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:11:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 01:11:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 01:11:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:11:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:11:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:11:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:11:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 01:11:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:11:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:11:06,595 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:11:06,734 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:11:06,735 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: ~i~0 := 3; [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747: havoc main_#t~ret22#1; [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-2: SUMMARY for call main_#t~ret22#1 := #PthreadsMutexUnlock(~#C~0.base, ~#C~0.offset); srcloc: null [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-3: [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739: havoc main_#t~ret16#1; [2025-02-08 01:11:06,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-1: ~h~0 := main_#t~ret16#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-2: assume { :end_inline_plus } true;assume -2147483648 <= main_#t~ret16#1 && main_#t~ret16#1 <= 2147483647; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-4: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-5: main_#t~ret16#1 := plus_#res#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740: havoc main_#t~ret17#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740-1: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740-2: SUMMARY for call main_#t~ret17#1 := #PthreadsMutexUnlock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740-3: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L732: havoc main_~id~0#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741: havoc main_#t~ret18#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-1: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-2: SUMMARY for call main_#t~ret18#1 := #PthreadsMutexLock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-3: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742: ~h~0 := main_~x~1#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: havoc main_#t~ret19#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-2: SUMMARY for call main_#t~ret19#1 := #PthreadsMutexUnlock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-3: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744: havoc main_#t~ret20#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-1: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-2: SUMMARY for call main_#t~ret20#1 := #PthreadsMutexUnlock(~#B~0.base, ~#B~0.offset); srcloc: null [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-3: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_#t~ret21#1; [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: [2025-02-08 01:11:06,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-2: SUMMARY for call main_#t~ret21#1 := #PthreadsMutexLock(~#C~0.base, ~#C~0.offset); srcloc: null [2025-02-08 01:11:06,945 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-3: [2025-02-08 01:11:07,040 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19: assume false; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19: assume !false; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-1: assume false; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-2: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-2: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-3: __VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: havoc #t~ret8#1; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-1: ~i~0 := #t~ret8#1; [2025-02-08 01:11:07,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-2: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret8#1 && #t~ret8#1 <= 2147483647; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-4: havoc plus_~a#1, plus_~b#1; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-5: #t~ret8#1 := plus_#res#1; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723: ~z~0#1 := ~i~0; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724: havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724-1: havoc __VERIFIER_assert_~cond#1; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724-2: havoc __VERIFIER_assert_~cond#1; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724-3: assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~z~0#1 >= ~x~0#1 then 1 else 0); [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: havoc #t~ret9#1; [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-1: [2025-02-08 01:11:07,042 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-2: SUMMARY for call #t~ret9#1 := #PthreadsMutexUnlock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 01:11:07,043 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-3: [2025-02-08 01:11:07,043 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726: havoc #t~ret10#1; [2025-02-08 01:11:07,043 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-1: [2025-02-08 01:11:07,043 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-2: SUMMARY for call #t~ret10#1 := #PthreadsMutexUnlock(~#C~0.base, ~#C~0.offset); srcloc: null [2025-02-08 01:11:07,043 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-3: [2025-02-08 01:11:07,044 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:11:07,044 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:11:07,145 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:11:07,146 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:11:07,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:11:07 BoogieIcfgContainer [2025-02-08 01:11:07,146 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:11:07,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:11:07,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:11:07,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:11:07,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:11:06" (1/3) ... [2025-02-08 01:11:07,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55897e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:11:07, skipping insertion in model container [2025-02-08 01:11:07,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:11:06" (2/3) ... [2025-02-08 01:11:07,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55897e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:11:07, skipping insertion in model container [2025-02-08 01:11:07,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:11:07" (3/3) ... [2025-02-08 01:11:07,154 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-02-08 01:11:07,164 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:11:07,166 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i that has 2 procedures, 30 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-08 01:11:07,166 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:11:07,198 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:11:07,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 66 flow [2025-02-08 01:11:07,238 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2025-02-08 01:11:07,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:11:07,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2025-02-08 01:11:07,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 31 transitions, 66 flow [2025-02-08 01:11:07,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 23 transitions, 49 flow [2025-02-08 01:11:07,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:11:07,257 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;@6b9ac4f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:11:07,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 01:11:07,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:11:07,263 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2025-02-08 01:11:07,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:11:07,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:07,264 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:07,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-08 01:11:07,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1153839607, now seen corresponding path program 1 times [2025-02-08 01:11:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:07,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908387084] [2025-02-08 01:11:07,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:07,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:07,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 01:11:07,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 01:11:07,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:07,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:07,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:07,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908387084] [2025-02-08 01:11:07,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908387084] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:07,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:07,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:11:07,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671303283] [2025-02-08 01:11:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:07,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:11:07,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:07,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:11:07,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:11:07,678 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2025-02-08 01:11:07,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:11:07,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:07,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2025-02-08 01:11:07,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:07,794 INFO L124 PetriNetUnfolderBase]: 36/103 cut-off events. [2025-02-08 01:11:07,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:11:07,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 103 events. 36/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 304 event pairs, 21 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 187. Up to 55 conditions per place. [2025-02-08 01:11:07,797 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 24 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2025-02-08 01:11:07,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 137 flow [2025-02-08 01:11:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:11:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:11:07,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2025-02-08 01:11:07,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4129032258064516 [2025-02-08 01:11:07,812 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 5 states and 64 transitions. [2025-02-08 01:11:07,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 137 flow [2025-02-08 01:11:07,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 01:11:07,824 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 90 flow [2025-02-08 01:11:07,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2025-02-08 01:11:07,832 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2025-02-08 01:11:07,832 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 90 flow [2025-02-08 01:11:07,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:11:07,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:07,834 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:07,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:11:07,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-08 01:11:07,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash -794235347, now seen corresponding path program 1 times [2025-02-08 01:11:07,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:07,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871987051] [2025-02-08 01:11:07,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:07,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:07,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 01:11:07,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 01:11:07,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:07,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:08,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:08,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871987051] [2025-02-08 01:11:08,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871987051] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:08,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:08,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:11:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354643764] [2025-02-08 01:11:08,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:08,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:11:08,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:08,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:11:08,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:11:08,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2025-02-08 01:11:08,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:11:08,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:08,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2025-02-08 01:11:08,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:08,268 INFO L124 PetriNetUnfolderBase]: 31/95 cut-off events. [2025-02-08 01:11:08,268 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-02-08 01:11:08,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 95 events. 31/95 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 275 event pairs, 9 based on Foata normal form. 5/98 useless extension candidates. Maximal degree in co-relation 222. Up to 27 conditions per place. [2025-02-08 01:11:08,269 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 16 selfloop transitions, 4 changer transitions 18/43 dead transitions. [2025-02-08 01:11:08,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 214 flow [2025-02-08 01:11:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:11:08,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:11:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 87 transitions. [2025-02-08 01:11:08,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35080645161290325 [2025-02-08 01:11:08,271 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 90 flow. Second operand 8 states and 87 transitions. [2025-02-08 01:11:08,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 214 flow [2025-02-08 01:11:08,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 01:11:08,273 INFO L231 Difference]: Finished difference. Result has 44 places, 22 transitions, 84 flow [2025-02-08 01:11:08,273 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=84, PETRI_PLACES=44, PETRI_TRANSITIONS=22} [2025-02-08 01:11:08,273 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 18 predicate places. [2025-02-08 01:11:08,273 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 22 transitions, 84 flow [2025-02-08 01:11:08,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:11:08,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:11:08,274 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:11:08,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:11:08,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-08 01:11:08,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:11:08,275 INFO L85 PathProgramCache]: Analyzing trace with hash 557295898, now seen corresponding path program 1 times [2025-02-08 01:11:08,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:11:08,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090074631] [2025-02-08 01:11:08,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:11:08,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:11:08,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:11:08,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:11:08,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:11:08,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:11:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:11:08,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:11:08,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090074631] [2025-02-08 01:11:08,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090074631] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:11:08,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:11:08,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:11:08,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002291932] [2025-02-08 01:11:08,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:11:08,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:11:08,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:11:08,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:11:08,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:11:08,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 31 [2025-02-08 01:11:08,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 22 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:11:08,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:11:08,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 31 [2025-02-08 01:11:08,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:11:08,427 INFO L124 PetriNetUnfolderBase]: 10/37 cut-off events. [2025-02-08 01:11:08,427 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-08 01:11:08,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 37 events. 10/37 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 89 event pairs, 4 based on Foata normal form. 3/38 useless extension candidates. Maximal degree in co-relation 81. Up to 15 conditions per place. [2025-02-08 01:11:08,428 INFO L140 encePairwiseOnDemand]: 28/31 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2025-02-08 01:11:08,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 17 transitions, 76 flow [2025-02-08 01:11:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:11:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:11:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2025-02-08 01:11:08,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45161290322580644 [2025-02-08 01:11:08,429 INFO L175 Difference]: Start difference. First operand has 44 places, 22 transitions, 84 flow. Second operand 4 states and 56 transitions. [2025-02-08 01:11:08,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 17 transitions, 76 flow [2025-02-08 01:11:08,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 01:11:08,430 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2025-02-08 01:11:08,430 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2025-02-08 01:11:08,430 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2025-02-08 01:11:08,430 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2025-02-08 01:11:08,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:11:08,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2025-02-08 01:11:08,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-02-08 01:11:08,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2025-02-08 01:11:08,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2025-02-08 01:11:08,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-02-08 01:11:08,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:11:08,434 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 01:11:08,437 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:11:08,437 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:11:08,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:11:08 BasicIcfg [2025-02-08 01:11:08,441 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:11:08,441 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:11:08,441 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:11:08,442 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:11:08,442 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:11:07" (3/4) ... [2025-02-08 01:11:08,443 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:11:08,445 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 01:11:08,447 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-02-08 01:11:08,447 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-08 01:11:08,447 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 01:11:08,447 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 01:11:08,496 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:11:08,496 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:11:08,496 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:11:08,497 INFO L158 Benchmark]: Toolchain (without parser) took 2484.82ms. Allocated memory is still 167.8MB. Free memory was 133.0MB in the beginning and 108.3MB in the end (delta: 24.6MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2025-02-08 01:11:08,497 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:08,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.86ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 112.0MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 01:11:08,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.86ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 110.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:08,498 INFO L158 Benchmark]: Boogie Preprocessor took 46.57ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 107.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:08,498 INFO L158 Benchmark]: IcfgBuilder took 629.64ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 66.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 01:11:08,498 INFO L158 Benchmark]: TraceAbstraction took 1292.78ms. Allocated memory is still 167.8MB. Free memory was 65.6MB in the beginning and 113.9MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:11:08,498 INFO L158 Benchmark]: Witness Printer took 55.05ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 108.3MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:11:08,499 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 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.86ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 112.0MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.86ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 110.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.57ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 107.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 629.64ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 66.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1292.78ms. Allocated memory is still 167.8MB. Free memory was 65.6MB in the beginning and 113.9MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.05ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 108.3MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 with 1 thread instances CFG has 3 procedures, 51 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=1, InterpolantAutomatonStates: 17, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:11:08,514 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