./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-1_3-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:52:05,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:52:05,262 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:52:05,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:52:05,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:52:05,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:52:05,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:52:05,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:52:05,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:52:05,295 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:52:05,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:52:05,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:52:05,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:52:05,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:52:05,297 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:52:05,298 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:52:05,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:05,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:52:05,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:52:05,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:52:05,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:52:05,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:52:05,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:52:05,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:52:05,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:52:05,300 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2025-02-06 12:52:05,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:52:05,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:52:05,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:52:05,607 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:52:05,607 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:52:05,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_3-join.i [2025-02-06 12:52:07,000 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ed9011bb/dda7d686ab364ea49164e9e58951486a/FLAG49696b132 [2025-02-06 12:52:07,354 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:52:07,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i [2025-02-06 12:52:07,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ed9011bb/dda7d686ab364ea49164e9e58951486a/FLAG49696b132 [2025-02-06 12:52:07,572 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ed9011bb/dda7d686ab364ea49164e9e58951486a [2025-02-06 12:52:07,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:52:07,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:52:07,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:07,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:52:07,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:52:07,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:07" (1/1) ... [2025-02-06 12:52:07,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13491ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:07, skipping insertion in model container [2025-02-06 12:52:07,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:07" (1/1) ... [2025-02-06 12:52:07,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:52:08,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:08,147 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:52:08,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:08,302 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:52:08,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08 WrapperNode [2025-02-06 12:52:08,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:08,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:52:08,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:52:08,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:52:08,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,366 INFO L138 Inliner]: procedures = 483, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 93 [2025-02-06 12:52:08,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:52:08,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:52:08,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:52:08,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:52:08,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,399 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2025-02-06 12:52:08,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,412 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:52:08,435 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:52:08,435 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:52:08,435 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:52:08,436 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (1/1) ... [2025-02-06 12:52:08,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:08,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:08,479 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) [2025-02-06 12:52:08,481 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 [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:52:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 12:52:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 12:52:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 12:52:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:52:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 12:52:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 12:52:08,504 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:52:08,792 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:52:08,793 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:52:08,971 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:52:08,971 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:52:09,090 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:52:09,090 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:52:09,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:09 BoogieIcfgContainer [2025-02-06 12:52:09,091 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:52:09,093 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:52:09,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:52:09,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:52:09,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:52:07" (1/3) ... [2025-02-06 12:52:09,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f336fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:52:09, skipping insertion in model container [2025-02-06 12:52:09,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:08" (2/3) ... [2025-02-06 12:52:09,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f336fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:52:09, skipping insertion in model container [2025-02-06 12:52:09,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:09" (3/3) ... [2025-02-06 12:52:09,103 INFO L128 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2025-02-06 12:52:09,117 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:52:09,119 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_3-join.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-02-06 12:52:09,119 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:52:09,158 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 12:52:09,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2025-02-06 12:52:09,213 INFO L124 PetriNetUnfolderBase]: 7/57 cut-off events. [2025-02-06 12:52:09,217 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:52:09,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 7/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 139 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2025-02-06 12:52:09,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2025-02-06 12:52:09,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2025-02-06 12:52:09,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:52:09,238 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=None, 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;@50de015b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:52:09,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:52:09,243 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:52:09,243 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2025-02-06 12:52:09,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:52:09,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:09,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 12:52:09,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:09,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:09,249 INFO L85 PathProgramCache]: Analyzing trace with hash 8883725, now seen corresponding path program 1 times [2025-02-06 12:52:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:52:09,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351621660] [2025-02-06 12:52:09,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:09,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:52:09,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 12:52:09,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 12:52:09,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:09,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:09,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:52:09,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351621660] [2025-02-06 12:52:09,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351621660] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:09,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:09,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:09,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579373729] [2025-02-06 12:52:09,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:09,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:09,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:52:09,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:09,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:09,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2025-02-06 12:52:09,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-06 12:52:09,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:09,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2025-02-06 12:52:09,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:09,735 INFO L124 PetriNetUnfolderBase]: 29/97 cut-off events. [2025-02-06 12:52:09,735 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:52:09,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 97 events. 29/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 327 event pairs, 28 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 142. Up to 80 conditions per place. [2025-02-06 12:52:09,736 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 17 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2025-02-06 12:52:09,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 110 flow [2025-02-06 12:52:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2025-02-06 12:52:09,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2025-02-06 12:52:09,749 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 65 transitions. [2025-02-06 12:52:09,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 110 flow [2025-02-06 12:52:09,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:09,755 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 72 flow [2025-02-06 12:52:09,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2025-02-06 12:52:09,759 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2025-02-06 12:52:09,759 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 72 flow [2025-02-06 12:52:09,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-06 12:52:09,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:09,760 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:09,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:52:09,760 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:09,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:09,760 INFO L85 PathProgramCache]: Analyzing trace with hash 61139196, now seen corresponding path program 1 times [2025-02-06 12:52:09,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:52:09,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506650444] [2025-02-06 12:52:09,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:09,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:52:09,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:09,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:09,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:09,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:09,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:52:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506650444] [2025-02-06 12:52:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506650444] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:09,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205794394] [2025-02-06 12:52:09,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:09,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:52:09,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:52:09,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:52:09,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:52:09,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2025-02-06 12:52:09,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2025-02-06 12:52:09,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:09,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2025-02-06 12:52:09,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:10,076 INFO L124 PetriNetUnfolderBase]: 24/84 cut-off events. [2025-02-06 12:52:10,077 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 12:52:10,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 84 events. 24/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 257 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 127. Up to 48 conditions per place. [2025-02-06 12:52:10,078 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 29 selfloop transitions, 3 changer transitions 1/42 dead transitions. [2025-02-06 12:52:10,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 164 flow [2025-02-06 12:52:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:52:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:52:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2025-02-06 12:52:10,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-06 12:52:10,081 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 72 flow. Second operand 4 states and 98 transitions. [2025-02-06 12:52:10,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 164 flow [2025-02-06 12:52:10,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 42 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:10,082 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 81 flow [2025-02-06 12:52:10,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=81, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2025-02-06 12:52:10,083 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2025-02-06 12:52:10,083 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 81 flow [2025-02-06 12:52:10,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2025-02-06 12:52:10,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:10,083 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:10,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:52:10,083 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:10,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:10,084 INFO L85 PathProgramCache]: Analyzing trace with hash 61140679, now seen corresponding path program 1 times [2025-02-06 12:52:10,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:52:10,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600820775] [2025-02-06 12:52:10,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:10,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:52:10,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:10,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:10,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:10,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:10,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:52:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600820775] [2025-02-06 12:52:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600820775] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:10,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:10,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:10,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781994699] [2025-02-06 12:52:10,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:10,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:10,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:52:10,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:10,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:10,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2025-02-06 12:52:10,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2025-02-06 12:52:10,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:10,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2025-02-06 12:52:10,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:10,294 INFO L124 PetriNetUnfolderBase]: 24/90 cut-off events. [2025-02-06 12:52:10,294 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-02-06 12:52:10,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 90 events. 24/90 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 259 event pairs, 14 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 51. Up to 56 conditions per place. [2025-02-06 12:52:10,295 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 24 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2025-02-06 12:52:10,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 154 flow [2025-02-06 12:52:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2025-02-06 12:52:10,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2025-02-06 12:52:10,299 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 81 flow. Second operand 3 states and 76 transitions. [2025-02-06 12:52:10,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 154 flow [2025-02-06 12:52:10,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:52:10,300 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 106 flow [2025-02-06 12:52:10,300 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-02-06 12:52:10,301 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2025-02-06 12:52:10,301 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 106 flow [2025-02-06 12:52:10,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2025-02-06 12:52:10,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:10,301 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:10,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:52:10,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:10,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash 725150795, now seen corresponding path program 1 times [2025-02-06 12:52:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:52:10,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707072265] [2025-02-06 12:52:10,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:52:10,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:10,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:10,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:10,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:10,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:52:10,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707072265] [2025-02-06 12:52:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707072265] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:52:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482945774] [2025-02-06 12:52:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:10,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:10,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:52:10,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:10,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:10,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2025-02-06 12:52:10,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2025-02-06 12:52:10,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:10,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2025-02-06 12:52:10,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:10,463 INFO L124 PetriNetUnfolderBase]: 24/86 cut-off events. [2025-02-06 12:52:10,463 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2025-02-06 12:52:10,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 86 events. 24/86 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 230 event pairs, 10 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 115. Up to 46 conditions per place. [2025-02-06 12:52:10,464 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 23 selfloop transitions, 2 changer transitions 5/37 dead transitions. [2025-02-06 12:52:10,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 174 flow [2025-02-06 12:52:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:10,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:52:10,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2025-02-06 12:52:10,466 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 106 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:52:10,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 174 flow [2025-02-06 12:52:10,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:10,467 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 92 flow [2025-02-06 12:52:10,467 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2025-02-06 12:52:10,468 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2025-02-06 12:52:10,468 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 92 flow [2025-02-06 12:52:10,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2025-02-06 12:52:10,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:10,468 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:10,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:52:10,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:10,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 817528093, now seen corresponding path program 1 times [2025-02-06 12:52:10,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:52:10,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348035854] [2025-02-06 12:52:10,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:10,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:52:10,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:52:10,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:52:10,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:10,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:52:10,493 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:52:10,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:52:10,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:52:10,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:10,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:52:10,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 12:52:10,529 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:52:10,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-06 12:52:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-06 12:52:10,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-02-06 12:52:10,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2025-02-06 12:52:10,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2025-02-06 12:52:10,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2025-02-06 12:52:10,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-02-06 12:52:10,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-02-06 12:52:10,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:52:10,534 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-06 12:52:10,559 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:52:10,559 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:52:10,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:52:10 BasicIcfg [2025-02-06 12:52:10,563 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:52:10,563 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:52:10,563 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:52:10,564 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:52:10,564 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:09" (3/4) ... [2025-02-06 12:52:10,567 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 12:52:10,568 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:52:10,568 INFO L158 Benchmark]: Toolchain (without parser) took 2992.08ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 80.8MB in the end (delta: 25.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2025-02-06 12:52:10,568 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:10,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.97ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 55.5MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-06 12:52:10,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.80ms. Allocated memory is still 142.6MB. Free memory was 55.5MB in the beginning and 53.0MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:52:10,569 INFO L158 Benchmark]: Boogie Preprocessor took 66.84ms. Allocated memory is still 142.6MB. Free memory was 53.0MB in the beginning and 50.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:10,569 INFO L158 Benchmark]: IcfgBuilder took 655.76ms. Allocated memory is still 142.6MB. Free memory was 50.6MB in the beginning and 86.5MB in the end (delta: -35.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2025-02-06 12:52:10,569 INFO L158 Benchmark]: TraceAbstraction took 1469.68ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 81.8MB in the end (delta: 4.6MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2025-02-06 12:52:10,569 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 80.8MB in the end (delta: 24.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:52:10,570 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 723.97ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 55.5MB in the end (delta: 51.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.80ms. Allocated memory is still 142.6MB. Free memory was 55.5MB in the beginning and 53.0MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.84ms. Allocated memory is still 142.6MB. Free memory was 53.0MB in the beginning and 50.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 655.76ms. Allocated memory is still 142.6MB. Free memory was 50.6MB in the beginning and 86.5MB in the end (delta: -35.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1469.68ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 81.8MB in the end (delta: 4.6MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 80.8MB in the end (delta: 24.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1693. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1713] 0 return 0; VAL [\old(arg)={0:0}, \result=0, arg={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, status={5:0}, t1=-1] [L1723] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={5:0}, t1=-1] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 50 locations, 8 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: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 2 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, InterpolantAutomatonStates: 13, 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, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 12:52:10,589 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:52:12,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:52:12,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 12:52:12,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:52:12,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:52:12,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:52:12,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:52:12,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:52:12,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:52:12,880 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:52:12,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:52:12,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:52:12,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:52:12,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:52:12,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:52:12,882 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:52:12,883 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:12,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:52:12,883 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:52:12,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:52:12,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:52:12,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:52:12,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:52:12,884 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2025-02-06 12:52:13,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:52:13,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:52:13,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:52:13,127 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:52:13,127 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:52:13,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_3-join.i [2025-02-06 12:52:14,329 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b0c381a5/43f121980618498583d8810c4c99f295/FLAG55c32a6f5 [2025-02-06 12:52:14,672 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:52:14,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i [2025-02-06 12:52:14,700 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b0c381a5/43f121980618498583d8810c4c99f295/FLAG55c32a6f5 [2025-02-06 12:52:14,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0b0c381a5/43f121980618498583d8810c4c99f295 [2025-02-06 12:52:14,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:52:14,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:52:14,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:14,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:52:14,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:52:14,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:14" (1/1) ... [2025-02-06 12:52:14,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e291be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:14, skipping insertion in model container [2025-02-06 12:52:14,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:14" (1/1) ... [2025-02-06 12:52:14,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:52:15,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:15,249 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:52:15,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:15,424 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:52:15,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15 WrapperNode [2025-02-06 12:52:15,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:15,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:52:15,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:52:15,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:52:15,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,485 INFO L138 Inliner]: procedures = 487, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 92 [2025-02-06 12:52:15,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:52:15,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:52:15,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:52:15,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:52:15,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,523 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2025-02-06 12:52:15,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,539 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:52:15,562 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:52:15,562 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:52:15,562 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:52:15,563 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (1/1) ... [2025-02-06 12:52:15,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:15,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:15,601 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) [2025-02-06 12:52:15,609 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 [2025-02-06 12:52:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:52:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:52:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 12:52:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:52:15,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 12:52:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 12:52:15,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 12:52:15,633 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:52:15,918 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:52:15,919 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:52:16,083 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:52:16,083 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:52:16,214 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:52:16,214 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:52:16,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:16 BoogieIcfgContainer [2025-02-06 12:52:16,215 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:52:16,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:52:16,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:52:16,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:52:16,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:52:14" (1/3) ... [2025-02-06 12:52:16,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1a456e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:52:16, skipping insertion in model container [2025-02-06 12:52:16,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:15" (2/3) ... [2025-02-06 12:52:16,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1a456e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:52:16, skipping insertion in model container [2025-02-06 12:52:16,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:16" (3/3) ... [2025-02-06 12:52:16,223 INFO L128 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2025-02-06 12:52:16,232 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:52:16,234 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-1_3-join.i that has 2 procedures, 42 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-02-06 12:52:16,234 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:52:16,271 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 12:52:16,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2025-02-06 12:52:16,320 INFO L124 PetriNetUnfolderBase]: 7/57 cut-off events. [2025-02-06 12:52:16,322 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:52:16,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 7/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 139 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2025-02-06 12:52:16,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2025-02-06 12:52:16,328 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2025-02-06 12:52:16,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:52:16,348 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=None, 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;@23c7b59c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:52:16,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:52:16,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:52:16,352 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2025-02-06 12:52:16,352 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:52:16,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:16,353 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 12:52:16,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:16,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:16,357 INFO L85 PathProgramCache]: Analyzing trace with hash 8822157, now seen corresponding path program 1 times [2025-02-06 12:52:16,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447670209] [2025-02-06 12:52:16,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:16,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:16,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:16,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:16,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:52:16,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 12:52:16,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 12:52:16,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:16,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:16,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:52:16,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:16,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:16,548 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:16,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447670209] [2025-02-06 12:52:16,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447670209] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:16,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:16,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:16,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903287038] [2025-02-06 12:52:16,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:16,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:16,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:16,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:16,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:16,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2025-02-06 12:52:16,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2025-02-06 12:52:16,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:16,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2025-02-06 12:52:16,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:16,673 INFO L124 PetriNetUnfolderBase]: 29/97 cut-off events. [2025-02-06 12:52:16,673 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:52:16,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 97 events. 29/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 327 event pairs, 28 based on Foata normal form. 3/85 useless extension candidates. Maximal degree in co-relation 142. Up to 80 conditions per place. [2025-02-06 12:52:16,675 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 14 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2025-02-06 12:52:16,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 104 flow [2025-02-06 12:52:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:16,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:52:16,687 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2025-02-06 12:52:16,688 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:52:16,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 104 flow [2025-02-06 12:52:16,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:16,716 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 72 flow [2025-02-06 12:52:16,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2025-02-06 12:52:16,721 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2025-02-06 12:52:16,721 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 72 flow [2025-02-06 12:52:16,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2025-02-06 12:52:16,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:16,722 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:16,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:52:16,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:16,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:16,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1250719812, now seen corresponding path program 1 times [2025-02-06 12:52:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723321995] [2025-02-06 12:52:16,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:16,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:16,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:16,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:16,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 12:52:17,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:17,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:17,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:17,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:17,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 12:52:17,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:17,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:17,051 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:17,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723321995] [2025-02-06 12:52:17,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723321995] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:17,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:17,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:52:17,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131967136] [2025-02-06 12:52:17,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:17,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:17,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:17,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:17,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:17,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2025-02-06 12:52:17,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2025-02-06 12:52:17,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:17,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2025-02-06 12:52:17,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:17,139 INFO L124 PetriNetUnfolderBase]: 28/95 cut-off events. [2025-02-06 12:52:17,139 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 12:52:17,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 95 events. 28/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 308 event pairs, 12 based on Foata normal form. 6/87 useless extension candidates. Maximal degree in co-relation 148. Up to 45 conditions per place. [2025-02-06 12:52:17,140 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 22 selfloop transitions, 2 changer transitions 1/33 dead transitions. [2025-02-06 12:52:17,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 130 flow [2025-02-06 12:52:17,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:17,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:52:17,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2025-02-06 12:52:17,142 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 72 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:52:17,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 130 flow [2025-02-06 12:52:17,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:17,144 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 66 flow [2025-02-06 12:52:17,144 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2025-02-06 12:52:17,145 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -11 predicate places. [2025-02-06 12:52:17,145 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 66 flow [2025-02-06 12:52:17,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2025-02-06 12:52:17,145 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:17,145 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:17,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 12:52:17,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:17,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:17,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1250718329, now seen corresponding path program 1 times [2025-02-06 12:52:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:17,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524749459] [2025-02-06 12:52:17,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:17,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:17,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:17,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:17,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 12:52:17,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:17,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:17,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:17,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:17,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:52:17,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:17,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:17,489 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:17,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524749459] [2025-02-06 12:52:17,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524749459] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:17,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:17,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:17,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952806408] [2025-02-06 12:52:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:17,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:17,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:17,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:17,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:17,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2025-02-06 12:52:17,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2025-02-06 12:52:17,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:17,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2025-02-06 12:52:17,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:17,570 INFO L124 PetriNetUnfolderBase]: 24/87 cut-off events. [2025-02-06 12:52:17,570 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 12:52:17,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 87 events. 24/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 234 event pairs, 14 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 61. Up to 55 conditions per place. [2025-02-06 12:52:17,571 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 20 selfloop transitions, 4 changer transitions 3/35 dead transitions. [2025-02-06 12:52:17,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 133 flow [2025-02-06 12:52:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2025-02-06 12:52:17,574 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2025-02-06 12:52:17,574 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 66 flow. Second operand 3 states and 75 transitions. [2025-02-06 12:52:17,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 133 flow [2025-02-06 12:52:17,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 35 transitions, 125 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-02-06 12:52:17,575 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 82 flow [2025-02-06 12:52:17,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2025-02-06 12:52:17,576 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, -10 predicate places. [2025-02-06 12:52:17,576 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 82 flow [2025-02-06 12:52:17,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2025-02-06 12:52:17,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:17,576 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:17,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 12:52:17,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:17,777 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:52:17,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1533986683, now seen corresponding path program 1 times [2025-02-06 12:52:17,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:17,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465305681] [2025-02-06 12:52:17,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:17,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:17,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:17,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:17,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 12:52:17,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:52:17,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:52:17,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:17,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:52:17,874 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:52:17,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:52:17,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:52:17,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:17,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:52:17,925 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 12:52:17,926 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:52:17,926 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-06 12:52:17,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-06 12:52:17,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-02-06 12:52:17,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2025-02-06 12:52:17,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2025-02-06 12:52:17,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2025-02-06 12:52:17,928 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-02-06 12:52:17,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-02-06 12:52:17,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 12:52:18,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:18,130 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 12:52:18,152 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:52:18,153 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:52:18,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:52:18 BasicIcfg [2025-02-06 12:52:18,159 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:52:18,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:52:18,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:52:18,159 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:52:18,160 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:16" (3/4) ... [2025-02-06 12:52:18,162 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 12:52:18,162 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:52:18,163 INFO L158 Benchmark]: Toolchain (without parser) took 3445.00ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 43.0MB in the end (delta: 46.7MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2025-02-06 12:52:18,164 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 61.6MB in the end (delta: 35.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:18,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.13ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 86.1MB in the end (delta: 3.6MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2025-02-06 12:52:18,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.52ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 83.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:18,164 INFO L158 Benchmark]: Boogie Preprocessor took 74.46ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 79.8MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:18,165 INFO L158 Benchmark]: IcfgBuilder took 653.49ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 73.1MB in the end (delta: 6.7MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2025-02-06 12:52:18,165 INFO L158 Benchmark]: TraceAbstraction took 1941.90ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 43.0MB in the end (delta: 30.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2025-02-06 12:52:18,165 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 4.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:18,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 61.6MB in the end (delta: 35.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.13ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 86.1MB in the end (delta: 3.6MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.52ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 83.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 74.46ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 79.8MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 653.49ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 73.1MB in the end (delta: 6.7MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1941.90ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 43.0MB in the end (delta: 30.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 4.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1693. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=0] [L1713] 0 return 0; VAL [\old(arg)={0:0}, \result=0, arg={0:0}, mutex={3:0}, pdev=1, t1=0] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=1, status={7:0}, t1=0] [L1723] 0 pdev = 4 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=4, status={7:0}, t1=0] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=0] - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 50 locations, 8 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: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 10 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 12:52:18,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample