./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/sync01.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:12:49,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:12:49,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 17:12:49,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:12:49,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:12:49,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:12:49,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:12:49,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:12:49,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:12:49,952 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:12:49,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:12:49,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:12:49,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:12:49,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:12:49,953 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:12:49,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:12:49,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:12:49,954 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:12:49,954 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:12:49,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:12:49,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:12:49,955 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/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 -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2025-03-08 17:12:50,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:12:50,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:12:50,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:12:50,208 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:12:50,208 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:12:50,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sync01.i [2025-03-08 17:12:51,450 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/434625d52/d87cc64ef79d4ecb8a397c139ffdd594/FLAG44843519e [2025-03-08 17:12:51,726 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:12:51,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i [2025-03-08 17:12:51,746 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/434625d52/d87cc64ef79d4ecb8a397c139ffdd594/FLAG44843519e [2025-03-08 17:12:51,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/434625d52/d87cc64ef79d4ecb8a397c139ffdd594 [2025-03-08 17:12:51,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:12:51,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:12:51,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:12:51,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:12:51,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:12:51,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:12:51" (1/1) ... [2025-03-08 17:12:51,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfe012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:51, skipping insertion in model container [2025-03-08 17:12:51,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:12:51" (1/1) ... [2025-03-08 17:12:51,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:12:52,064 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2025-03-08 17:12:52,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:12:52,084 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:12:52,119 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2025-03-08 17:12:52,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:12:52,166 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:12:52,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52 WrapperNode [2025-03-08 17:12:52,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:12:52,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:12:52,169 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:12:52,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:12:52,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,212 INFO L138 Inliner]: procedures = 268, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 252 [2025-03-08 17:12:52,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:12:52,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:12:52,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:12:52,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:12:52,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,229 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,250 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-03-08 17:12:52,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:12:52,273 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:12:52,274 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:12:52,275 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:12:52,275 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (1/1) ... [2025-03-08 17:12:52,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:12:52,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:12:52,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:12:52,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:12:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 17:12:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-08 17:12:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-08 17:12:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-08 17:12:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-08 17:12:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 17:12:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:12:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:12:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:12:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:12:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:12:52,330 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 17:12:52,455 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:12:52,456 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:12:52,740 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 17:12:52,740 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:12:53,384 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:12:53,385 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:12:53,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:12:53 BoogieIcfgContainer [2025-03-08 17:12:53,385 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:12:53,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:12:53,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:12:53,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:12:53,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:12:51" (1/3) ... [2025-03-08 17:12:53,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d55e882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:12:53, skipping insertion in model container [2025-03-08 17:12:53,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:12:52" (2/3) ... [2025-03-08 17:12:53,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d55e882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:12:53, skipping insertion in model container [2025-03-08 17:12:53,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:12:53" (3/3) ... [2025-03-08 17:12:53,392 INFO L128 eAbstractionObserver]: Analyzing ICFG sync01.i [2025-03-08 17:12:53,405 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:12:53,406 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sync01.i that has 3 procedures, 30 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-08 17:12:53,406 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 17:12:53,469 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 17:12:53,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 78 flow [2025-03-08 17:12:53,535 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2025-03-08 17:12:53,539 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-08 17:12:53,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 3/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2025-03-08 17:12:53,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 78 flow [2025-03-08 17:12:53,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 27 transitions, 66 flow [2025-03-08 17:12:53,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:12:53,563 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;@2799458, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:12:53,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-08 17:12:53,584 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 17:12:53,584 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2025-03-08 17:12:53,584 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-08 17:12:53,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:12:53,585 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:12:53,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-08 17:12:53,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:12:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1460079693, now seen corresponding path program 1 times [2025-03-08 17:12:53,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:12:53,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451142346] [2025-03-08 17:12:53,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:12:53,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:12:54,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-08 17:12:54,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-08 17:12:54,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:12:54,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:12:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:12:54,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:12:54,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451142346] [2025-03-08 17:12:54,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451142346] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:12:54,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:12:54,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 17:12:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208513337] [2025-03-08 17:12:54,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:12:54,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 17:12:54,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:12:54,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 17:12:54,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 17:12:54,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2025-03-08 17:12:54,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2025-03-08 17:12:54,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:12:54,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2025-03-08 17:12:54,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:12:54,365 INFO L124 PetriNetUnfolderBase]: 89/175 cut-off events. [2025-03-08 17:12:54,365 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-08 17:12:54,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 175 events. 89/175 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 574 event pairs, 32 based on Foata normal form. 10/177 useless extension candidates. Maximal degree in co-relation 324. Up to 113 conditions per place. [2025-03-08 17:12:54,369 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 20 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2025-03-08 17:12:54,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 112 flow [2025-03-08 17:12:54,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 17:12:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 17:12:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2025-03-08 17:12:54,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-03-08 17:12:54,381 INFO L175 Difference]: Start difference. First operand has 32 places, 27 transitions, 66 flow. Second operand 3 states and 48 transitions. [2025-03-08 17:12:54,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 112 flow [2025-03-08 17:12:54,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 104 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 17:12:54,387 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 60 flow [2025-03-08 17:12:54,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2025-03-08 17:12:54,393 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2025-03-08 17:12:54,393 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 60 flow [2025-03-08 17:12:54,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2025-03-08 17:12:54,394 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:12:54,394 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:12:54,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 17:12:54,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-08 17:12:54,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:12:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 732322333, now seen corresponding path program 2 times [2025-03-08 17:12:54,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:12:54,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822784140] [2025-03-08 17:12:54,396 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 17:12:54,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:12:54,581 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-03-08 17:12:54,600 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-08 17:12:54,600 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 17:12:54,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:12:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:12:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:12:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822784140] [2025-03-08 17:12:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822784140] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:12:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:12:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 17:12:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751230571] [2025-03-08 17:12:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:12:54,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 17:12:54,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:12:54,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 17:12:54,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 17:12:54,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2025-03-08 17:12:54,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2025-03-08 17:12:54,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:12:54,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2025-03-08 17:12:54,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:12:54,891 INFO L124 PetriNetUnfolderBase]: 61/143 cut-off events. [2025-03-08 17:12:54,892 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-08 17:12:54,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 143 events. 61/143 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 424 event pairs, 12 based on Foata normal form. 19/160 useless extension candidates. Maximal degree in co-relation 129. Up to 61 conditions per place. [2025-03-08 17:12:54,893 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2025-03-08 17:12:54,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 35 transitions, 147 flow [2025-03-08 17:12:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:12:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 17:12:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2025-03-08 17:12:54,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4114583333333333 [2025-03-08 17:12:54,894 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 60 flow. Second operand 6 states and 79 transitions. [2025-03-08 17:12:54,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 35 transitions, 147 flow [2025-03-08 17:12:54,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 17:12:54,894 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2025-03-08 17:12:54,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2025-03-08 17:12:54,895 INFO L279 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2025-03-08 17:12:54,895 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2025-03-08 17:12:54,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2025-03-08 17:12:54,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-08 17:12:54,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-03-08 17:12:54,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-08 17:12:54,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:12:54,898 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-03-08 17:12:54,901 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 17:12:54,901 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 17:12:54,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:12:54 BasicIcfg [2025-03-08 17:12:54,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 17:12:54,905 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 17:12:54,905 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 17:12:54,905 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 17:12:54,906 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:12:53" (3/4) ... [2025-03-08 17:12:54,907 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 17:12:54,909 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-08 17:12:54,909 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-08 17:12:54,914 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 136 nodes and edges [2025-03-08 17:12:54,914 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2025-03-08 17:12:54,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-03-08 17:12:54,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-08 17:12:54,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-08 17:12:54,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 17:12:54,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 17:12:54,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 17:12:54,986 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 17:12:54,987 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 17:12:54,987 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 17:12:54,988 INFO L158 Benchmark]: Toolchain (without parser) took 3221.80ms. Allocated memory was 167.8MB in the beginning and 394.3MB in the end (delta: 226.5MB). Free memory was 124.1MB in the beginning and 189.7MB in the end (delta: -65.6MB). Peak memory consumption was 153.0MB. Max. memory is 16.1GB. [2025-03-08 17:12:54,988 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:12:54,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.09ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 94.1MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 17:12:54,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.71ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 91.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:12:54,989 INFO L158 Benchmark]: Boogie Preprocessor took 57.81ms. Allocated memory is still 167.8MB. Free memory was 91.2MB in the beginning and 88.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:12:54,989 INFO L158 Benchmark]: IcfgBuilder took 1112.21ms. Allocated memory was 167.8MB in the beginning and 394.3MB in the end (delta: 226.5MB). Free memory was 88.4MB in the beginning and 298.1MB in the end (delta: -209.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2025-03-08 17:12:54,989 INFO L158 Benchmark]: TraceAbstraction took 1517.74ms. Allocated memory is still 394.3MB. Free memory was 298.1MB in the beginning and 197.9MB in the end (delta: 100.2MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2025-03-08 17:12:54,989 INFO L158 Benchmark]: Witness Printer took 82.01ms. Allocated memory is still 394.3MB. Free memory was 197.9MB in the beginning and 189.7MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:12:54,990 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.09ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 94.1MB in the end (delta: 29.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.71ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 91.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.81ms. Allocated memory is still 167.8MB. Free memory was 91.2MB in the beginning and 88.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1112.21ms. Allocated memory was 167.8MB in the beginning and 394.3MB in the end (delta: 226.5MB). Free memory was 88.4MB in the beginning and 298.1MB in the end (delta: -209.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1517.74ms. Allocated memory is still 394.3MB. Free memory was 298.1MB in the beginning and 197.9MB in the end (delta: 100.2MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. * Witness Printer took 82.01ms. Allocated memory is still 394.3MB. Free memory was 197.9MB in the beginning and 189.7MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 966]: 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 5 procedures, 50 locations, 54 edges, 3 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: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 4 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 17:12:55,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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