./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 0.2.5-?-c7c6ca5-m [2024-11-09 10:37:23,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:37:23,171 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:37:23,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:37:23,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:37:23,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:37:23,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:37:23,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:37:23,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:37:23,208 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:37:23,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:37:23,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:37:23,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:37:23,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:37:23,213 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:37:23,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:37:23,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:37:23,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:37:23,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:37:23,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:37:23,218 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:37:23,219 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:37:23,219 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:37:23,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:37:23,220 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:37:23,220 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:37:23,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:37:23,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:37:23,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:37:23,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:37:23,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:37:23,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:37:23,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:37:23,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:37:23,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:37:23,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:37:23,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:37:23,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:37:23,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:37:23,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:37:23,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:37:23,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:37:23,225 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2024-11-09 10:37:23,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:37:23,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:37:23,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:37:23,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:37:23,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:37:23,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-09 10:37:24,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:37:25,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:37:25,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-09 10:37:25,275 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6df8f45/4fcf0b9059de4b4a9594a29ea7223294/FLAGc4a16875d [2024-11-09 10:37:25,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b6df8f45/4fcf0b9059de4b4a9594a29ea7223294 [2024-11-09 10:37:25,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:37:25,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:37:25,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:37:25,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:37:25,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:37:25,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:25" (1/1) ... [2024-11-09 10:37:25,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc4c884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:25, skipping insertion in model container [2024-11-09 10:37:25,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:25" (1/1) ... [2024-11-09 10:37:25,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:37:25,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:37:25,999 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:37:26,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:37:26,185 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:37:26,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26 WrapperNode [2024-11-09 10:37:26,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:37:26,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:37:26,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:37:26,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:37:26,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,253 INFO L138 Inliner]: procedures = 483, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 93 [2024-11-09 10:37:26,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:37:26,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:37:26,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:37:26,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:37:26,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,295 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]. [2024-11-09 10:37:26,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:37:26,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:37:26,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:37:26,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:37:26,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (1/1) ... [2024-11-09 10:37:26,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:37:26,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:37:26,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:37:26,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:37:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:37:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 10:37:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:37:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 10:37:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:37:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 10:37:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 10:37:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 10:37:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:37:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:37:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 10:37:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 10:37:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 10:37:26,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 10:37:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:37:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 10:37:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 10:37:26,442 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:37:26,735 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:37:26,736 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:37:26,892 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:37:26,892 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:37:27,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:37:27,021 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:37:27,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:27 BoogieIcfgContainer [2024-11-09 10:37:27,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:37:27,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:37:27,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:37:27,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:37:27,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:37:25" (1/3) ... [2024-11-09 10:37:27,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1114974d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:27, skipping insertion in model container [2024-11-09 10:37:27,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:26" (2/3) ... [2024-11-09 10:37:27,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1114974d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:27, skipping insertion in model container [2024-11-09 10:37:27,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:27" (3/3) ... [2024-11-09 10:37:27,035 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2024-11-09 10:37:27,051 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:37:27,051 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 10:37:27,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:37:27,092 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 10:37:27,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2024-11-09 10:37:27,155 INFO L124 PetriNetUnfolderBase]: 7/57 cut-off events. [2024-11-09 10:37:27,159 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:37:27,162 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 138 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. [2024-11-09 10:37:27,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2024-11-09 10:37:27,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2024-11-09 10:37:27,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:37:27,189 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;@11671069, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:37:27,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 10:37:27,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:37:27,195 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-09 10:37:27,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:37:27,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:27,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 10:37:27,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:27,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash 10187905, now seen corresponding path program 1 times [2024-11-09 10:37:27,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:37:27,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787807983] [2024-11-09 10:37:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:27,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:37:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:27,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:37:27,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787807983] [2024-11-09 10:37:27,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787807983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:27,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:27,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:37:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695446121] [2024-11-09 10:37:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:27,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:37:27,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:37:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:37:27,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:37:27,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-09 10:37:27,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-09 10:37:27,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:27,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-09 10:37:27,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:27,769 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-11-09 10:37:27,769 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:37:27,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 79 events. 19/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 275 event pairs, 18 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 102. Up to 57 conditions per place. [2024-11-09 10:37:27,771 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 15 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-09 10:37:27,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 106 flow [2024-11-09 10:37:27,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:37:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:37:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-09 10:37:27,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2024-11-09 10:37:27,783 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 69 transitions. [2024-11-09 10:37:27,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 106 flow [2024-11-09 10:37:27,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:37:27,787 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 72 flow [2024-11-09 10:37:27,788 INFO L260 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} [2024-11-09 10:37:27,792 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2024-11-09 10:37:27,792 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 72 flow [2024-11-09 10:37:27,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-09 10:37:27,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:27,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:27,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:37:27,793 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:27,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:27,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2047821023, now seen corresponding path program 1 times [2024-11-09 10:37:27,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:37:27,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835568951] [2024-11-09 10:37:27,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:27,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:37:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:27,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:37:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835568951] [2024-11-09 10:37:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835568951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:27,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:27,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:37:27,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106711697] [2024-11-09 10:37:27,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:27,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:37:27,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:37:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:37:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:37:27,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-09 10:37:27,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-09 10:37:27,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:27,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-09 10:37:27,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:28,108 INFO L124 PetriNetUnfolderBase]: 15/69 cut-off events. [2024-11-09 10:37:28,108 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 10:37:28,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 69 events. 15/69 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 205 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 92. Up to 31 conditions per place. [2024-11-09 10:37:28,109 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 24 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2024-11-09 10:37:28,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 148 flow [2024-11-09 10:37:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:37:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:37:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-09 10:37:28,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5153061224489796 [2024-11-09 10:37:28,113 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 72 flow. Second operand 4 states and 101 transitions. [2024-11-09 10:37:28,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 148 flow [2024-11-09 10:37:28,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:37:28,116 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 81 flow [2024-11-09 10:37:28,117 INFO L260 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} [2024-11-09 10:37:28,118 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2024-11-09 10:37:28,118 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 81 flow [2024-11-09 10:37:28,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-09 10:37:28,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:28,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:28,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:37:28,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:28,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2047822596, now seen corresponding path program 1 times [2024-11-09 10:37:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:37:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961406905] [2024-11-09 10:37:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:28,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:37:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:28,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:28,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:37:28,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961406905] [2024-11-09 10:37:28,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961406905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:28,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:37:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377009405] [2024-11-09 10:37:28,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:28,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:37:28,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:37:28,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:37:28,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:37:28,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-09 10:37:28,290 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) [2024-11-09 10:37:28,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:28,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-09 10:37:28,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:28,362 INFO L124 PetriNetUnfolderBase]: 24/90 cut-off events. [2024-11-09 10:37:28,363 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-09 10:37:28,364 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 271 event pairs, 14 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 51. Up to 56 conditions per place. [2024-11-09 10:37:28,365 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 24 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2024-11-09 10:37:28,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 154 flow [2024-11-09 10:37:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:37:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:37:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-09 10:37:28,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2024-11-09 10:37:28,367 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 81 flow. Second operand 3 states and 76 transitions. [2024-11-09 10:37:28,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 154 flow [2024-11-09 10:37:28,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:37:28,369 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 106 flow [2024-11-09 10:37:28,369 INFO L260 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} [2024-11-09 10:37:28,372 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2024-11-09 10:37:28,372 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 106 flow [2024-11-09 10:37:28,372 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) [2024-11-09 10:37:28,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:28,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:28,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:37:28,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:28,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:28,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1456767583, now seen corresponding path program 1 times [2024-11-09 10:37:28,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:37:28,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117267220] [2024-11-09 10:37:28,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:28,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:37:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:28,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:37:28,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117267220] [2024-11-09 10:37:28,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117267220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:28,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:28,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:37:28,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190925968] [2024-11-09 10:37:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:28,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:37:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:37:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:37:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:37:28,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-09 10:37:28,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-09 10:37:28,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:28,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-09 10:37:28,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:28,516 INFO L124 PetriNetUnfolderBase]: 18/77 cut-off events. [2024-11-09 10:37:28,516 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-09 10:37:28,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 77 events. 18/77 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 205 event pairs, 8 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 94. Up to 34 conditions per place. [2024-11-09 10:37:28,517 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 19 selfloop transitions, 2 changer transitions 5/36 dead transitions. [2024-11-09 10:37:28,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 162 flow [2024-11-09 10:37:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:37:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:37:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-09 10:37:28,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2024-11-09 10:37:28,521 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 106 flow. Second operand 3 states and 74 transitions. [2024-11-09 10:37:28,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 162 flow [2024-11-09 10:37:28,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:37:28,523 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 92 flow [2024-11-09 10:37:28,523 INFO L260 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} [2024-11-09 10:37:28,525 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2024-11-09 10:37:28,526 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 92 flow [2024-11-09 10:37:28,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-09 10:37:28,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:28,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:28,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:37:28,528 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:28,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash 158066262, now seen corresponding path program 1 times [2024-11-09 10:37:28,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:37:28,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217441713] [2024-11-09 10:37:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:37:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:37:28,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 10:37:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:37:28,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 10:37:28,598 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 10:37:28,599 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-09 10:37:28,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-09 10:37:28,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-09 10:37:28,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-11-09 10:37:28,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-11-09 10:37:28,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-11-09 10:37:28,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-11-09 10:37:28,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-09 10:37:28,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:37:28,604 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 10:37:28,633 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:37:28,633 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:37:28,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:37:28 BasicIcfg [2024-11-09 10:37:28,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:37:28,639 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:37:28,639 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:37:28,639 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:37:28,640 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:27" (3/4) ... [2024-11-09 10:37:28,644 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 10:37:28,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:37:28,646 INFO L158 Benchmark]: Toolchain (without parser) took 3349.99ms. Allocated memory is still 195.0MB. Free memory was 123.0MB in the beginning and 112.7MB in the end (delta: 10.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-09 10:37:28,646 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:37:28,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 890.13ms. Allocated memory is still 195.0MB. Free memory was 122.8MB in the beginning and 121.4MB in the end (delta: 1.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 10:37:28,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.79ms. Allocated memory is still 195.0MB. Free memory was 121.4MB in the beginning and 118.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:37:28,647 INFO L158 Benchmark]: Boogie Preprocessor took 84.30ms. Allocated memory is still 195.0MB. Free memory was 118.5MB in the beginning and 114.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:37:28,649 INFO L158 Benchmark]: RCFGBuilder took 682.45ms. Allocated memory is still 195.0MB. Free memory was 114.7MB in the beginning and 152.7MB in the end (delta: -37.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2024-11-09 10:37:28,649 INFO L158 Benchmark]: TraceAbstraction took 1612.99ms. Allocated memory is still 195.0MB. Free memory was 151.6MB in the beginning and 112.7MB in the end (delta: 38.9MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-11-09 10:37:28,649 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 195.0MB. Free memory is still 112.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:37:28,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 890.13ms. Allocated memory is still 195.0MB. Free memory was 122.8MB in the beginning and 121.4MB in the end (delta: 1.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.79ms. Allocated memory is still 195.0MB. Free memory was 121.4MB in the beginning and 118.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.30ms. Allocated memory is still 195.0MB. Free memory was 118.5MB in the beginning and 114.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 682.45ms. Allocated memory is still 195.0MB. Free memory was 114.7MB in the beginning and 152.7MB in the end (delta: -37.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1612.99ms. Allocated memory is still 195.0MB. Free memory was 151.6MB in the beginning and 112.7MB in the end (delta: 38.9MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 195.0MB. Free memory is still 112.7MB. 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=-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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 165 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 10:37:28,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 0.2.5-?-c7c6ca5-m [2024-11-09 10:37:30,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:37:30,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-09 10:37:30,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:37:30,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:37:30,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:37:30,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:37:30,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:37:30,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:37:30,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:37:30,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:37:30,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:37:30,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:37:30,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:37:30,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:37:30,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:37:30,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:37:30,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:37:30,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:37:30,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:37:30,979 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:37:30,981 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:37:30,982 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:37:30,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:37:30,982 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:37:30,982 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 10:37:30,983 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:37:30,983 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 10:37:30,983 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:37:30,983 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:37:30,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:37:30,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:37:30,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:37:30,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:37:30,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:37:30,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:37:30,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:37:30,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:37:30,986 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 10:37:30,987 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 10:37:30,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:37:30,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:37:30,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:37:30,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:37:30,988 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2024-11-09 10:37:31,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:37:31,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:37:31,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:37:31,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:37:31,335 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:37:31,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-09 10:37:32,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:37:33,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:37:33,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i [2024-11-09 10:37:33,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a501874/e4bafd961688433db79bc6fab4eb7088/FLAGb9265a0e1 [2024-11-09 10:37:33,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a501874/e4bafd961688433db79bc6fab4eb7088 [2024-11-09 10:37:33,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:37:33,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:37:33,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:37:33,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:37:33,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:37:33,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:33" (1/1) ... [2024-11-09 10:37:33,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1d4350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:33, skipping insertion in model container [2024-11-09 10:37:33,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:33" (1/1) ... [2024-11-09 10:37:33,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:37:34,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:37:34,151 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:37:34,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:37:34,371 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:37:34,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34 WrapperNode [2024-11-09 10:37:34,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:37:34,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:37:34,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:37:34,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:37:34,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,436 INFO L138 Inliner]: procedures = 487, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 92 [2024-11-09 10:37:34,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:37:34,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:37:34,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:37:34,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:37:34,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,471 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]. [2024-11-09 10:37:34,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:37:34,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:37:34,511 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:37:34,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:37:34,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (1/1) ... [2024-11-09 10:37:34,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:37:34,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:37:34,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:37:34,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:37:34,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-09 10:37:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:37:34,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 10:37:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 10:37:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 10:37:34,612 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:37:34,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:37:34,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:37:35,220 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:37:35,221 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:37:35,383 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:37:35,383 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:37:35,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:35 BoogieIcfgContainer [2024-11-09 10:37:35,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:37:35,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:37:35,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:37:35,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:37:35,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:37:33" (1/3) ... [2024-11-09 10:37:35,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584efa31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:35, skipping insertion in model container [2024-11-09 10:37:35,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34" (2/3) ... [2024-11-09 10:37:35,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584efa31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:35, skipping insertion in model container [2024-11-09 10:37:35,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:35" (3/3) ... [2024-11-09 10:37:35,394 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2024-11-09 10:37:35,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:37:35,410 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 10:37:35,410 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:37:35,448 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 10:37:35,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2024-11-09 10:37:35,502 INFO L124 PetriNetUnfolderBase]: 7/57 cut-off events. [2024-11-09 10:37:35,504 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:37:35,506 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 138 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. [2024-11-09 10:37:35,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2024-11-09 10:37:35,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2024-11-09 10:37:35,522 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:37:35,532 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;@68e557bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:37:35,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 10:37:35,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:37:35,546 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-09 10:37:35,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:37:35,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:35,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 10:37:35,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:35,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:35,552 INFO L85 PathProgramCache]: Analyzing trace with hash 10185983, now seen corresponding path program 1 times [2024-11-09 10:37:35,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:37:35,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006972069] [2024-11-09 10:37:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:35,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:35,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:37:35,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:37:35,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 10:37:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:35,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:37:35,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:37:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:35,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:37:35,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:37:35,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006972069] [2024-11-09 10:37:35,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006972069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:35,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:35,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:37:35,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525925482] [2024-11-09 10:37:35,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:35,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:37:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:37:35,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:37:35,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:37:35,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-09 10:37:35,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-09 10:37:35,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:35,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-09 10:37:35,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:35,942 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-11-09 10:37:35,942 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:37:35,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 79 events. 19/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 275 event pairs, 18 based on Foata normal form. 3/68 useless extension candidates. Maximal degree in co-relation 102. Up to 57 conditions per place. [2024-11-09 10:37:35,944 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 12 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-09 10:37:35,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 100 flow [2024-11-09 10:37:35,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:37:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:37:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-09 10:37:35,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-09 10:37:35,957 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 75 transitions. [2024-11-09 10:37:35,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 100 flow [2024-11-09 10:37:35,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:37:35,962 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 72 flow [2024-11-09 10:37:35,964 INFO L260 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} [2024-11-09 10:37:35,970 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -12 predicate places. [2024-11-09 10:37:35,970 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 72 flow [2024-11-09 10:37:35,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-09 10:37:35,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:35,971 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:35,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 10:37:36,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:36,176 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:36,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash 310746629, now seen corresponding path program 1 times [2024-11-09 10:37:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:37:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889567210] [2024-11-09 10:37:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:36,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:36,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:37:36,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:37:36,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 10:37:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:36,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:37:36,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:37:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:36,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:37:36,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:37:36,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889567210] [2024-11-09 10:37:36,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889567210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:36,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:36,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:37:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889183470] [2024-11-09 10:37:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:36,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:37:36,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:37:36,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:37:36,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:37:36,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-09 10:37:36,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-09 10:37:36,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:36,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-09 10:37:36,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:36,453 INFO L124 PetriNetUnfolderBase]: 15/69 cut-off events. [2024-11-09 10:37:36,454 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 10:37:36,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 69 events. 15/69 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 205 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 92. Up to 31 conditions per place. [2024-11-09 10:37:36,455 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 24 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2024-11-09 10:37:36,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 148 flow [2024-11-09 10:37:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:37:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:37:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-09 10:37:36,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5153061224489796 [2024-11-09 10:37:36,458 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 72 flow. Second operand 4 states and 101 transitions. [2024-11-09 10:37:36,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 148 flow [2024-11-09 10:37:36,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 39 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:37:36,461 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 81 flow [2024-11-09 10:37:36,461 INFO L260 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} [2024-11-09 10:37:36,462 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -9 predicate places. [2024-11-09 10:37:36,462 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 81 flow [2024-11-09 10:37:36,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-09 10:37:36,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:36,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:36,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 10:37:36,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:36,667 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:36,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash 310748262, now seen corresponding path program 1 times [2024-11-09 10:37:36,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:37:36,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067310068] [2024-11-09 10:37:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:36,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:36,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:37:36,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:37:36,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 10:37:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:36,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:37:36,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:37:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:36,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:37:36,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:37:36,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067310068] [2024-11-09 10:37:36,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067310068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:36,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:36,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:37:36,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610518943] [2024-11-09 10:37:36,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:36,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:37:36,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:37:36,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:37:36,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:37:36,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-09 10:37:36,817 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) [2024-11-09 10:37:36,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:36,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-09 10:37:36,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:36,900 INFO L124 PetriNetUnfolderBase]: 24/90 cut-off events. [2024-11-09 10:37:36,900 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-09 10:37:36,901 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 258 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. [2024-11-09 10:37:36,901 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 24 selfloop transitions, 4 changer transitions 1/38 dead transitions. [2024-11-09 10:37:36,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 38 transitions, 154 flow [2024-11-09 10:37:36,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:37:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:37:36,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-09 10:37:36,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2024-11-09 10:37:36,904 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 81 flow. Second operand 3 states and 76 transitions. [2024-11-09 10:37:36,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 38 transitions, 154 flow [2024-11-09 10:37:36,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:37:36,906 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 106 flow [2024-11-09 10:37:36,907 INFO L260 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} [2024-11-09 10:37:36,907 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2024-11-09 10:37:36,907 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 106 flow [2024-11-09 10:37:36,908 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) [2024-11-09 10:37:36,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:36,908 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:36,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 10:37:37,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:37,109 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:37,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:37,110 INFO L85 PathProgramCache]: Analyzing trace with hash -280306811, now seen corresponding path program 1 times [2024-11-09 10:37:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:37:37,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787239679] [2024-11-09 10:37:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:37,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:37,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:37:37,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:37:37,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 10:37:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:37:37,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 10:37:37,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:37:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:37:37,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:37:37,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:37:37,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787239679] [2024-11-09 10:37:37,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787239679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:37:37,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:37:37,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:37:37,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462075854] [2024-11-09 10:37:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:37:37,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:37:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:37:37,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:37:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:37:37,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-09 10:37:37,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-09 10:37:37,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:37:37,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-09 10:37:37,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:37:37,320 INFO L124 PetriNetUnfolderBase]: 18/77 cut-off events. [2024-11-09 10:37:37,320 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-09 10:37:37,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 77 events. 18/77 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 205 event pairs, 8 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 94. Up to 34 conditions per place. [2024-11-09 10:37:37,322 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 19 selfloop transitions, 2 changer transitions 5/36 dead transitions. [2024-11-09 10:37:37,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 162 flow [2024-11-09 10:37:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:37:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:37:37,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-09 10:37:37,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2024-11-09 10:37:37,324 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 106 flow. Second operand 3 states and 74 transitions. [2024-11-09 10:37:37,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 162 flow [2024-11-09 10:37:37,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:37:37,326 INFO L231 Difference]: Finished difference. Result has 38 places, 28 transitions, 92 flow [2024-11-09 10:37:37,326 INFO L260 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} [2024-11-09 10:37:37,327 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2024-11-09 10:37:37,327 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 28 transitions, 92 flow [2024-11-09 10:37:37,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-09 10:37:37,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:37:37,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:37:37,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 10:37:37,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:37,532 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:37:37,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:37:37,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2089884996, now seen corresponding path program 1 times [2024-11-09 10:37:37,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:37:37,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383475689] [2024-11-09 10:37:37,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:37:37,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:37,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:37:37,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 10:37:37,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 10:37:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:37:37,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 10:37:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:37:37,700 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-09 10:37:37,700 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 10:37:37,701 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-09 10:37:37,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-09 10:37:37,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-09 10:37:37,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-11-09 10:37:37,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-11-09 10:37:37,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-11-09 10:37:37,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-11-09 10:37:37,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-09 10:37:37,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 10:37:37,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 10:37:37,905 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 10:37:37,948 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:37:37,949 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:37:37,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:37:37 BasicIcfg [2024-11-09 10:37:37,957 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:37:37,958 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:37:37,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:37:37,958 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:37:37,959 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:35" (3/4) ... [2024-11-09 10:37:37,965 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 10:37:37,966 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:37:37,967 INFO L158 Benchmark]: Toolchain (without parser) took 4692.13ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 37.8MB in the beginning and 65.7MB in the end (delta: -27.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-09 10:37:37,967 INFO L158 Benchmark]: CDTParser took 1.14ms. Allocated memory is still 41.9MB. Free memory was 18.6MB in the beginning and 18.5MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:37:37,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1097.32ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 44.1MB in the end (delta: -6.4MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-09 10:37:37,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.27ms. Allocated memory is still 79.7MB. Free memory was 44.1MB in the beginning and 40.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:37:37,972 INFO L158 Benchmark]: Boogie Preprocessor took 72.45ms. Allocated memory is still 79.7MB. Free memory was 40.7MB in the beginning and 36.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:37:37,973 INFO L158 Benchmark]: RCFGBuilder took 873.53ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 36.9MB in the end (delta: -373.7kB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-11-09 10:37:37,973 INFO L158 Benchmark]: TraceAbstraction took 2571.42ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 35.9MB in the beginning and 65.7MB in the end (delta: -29.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-11-09 10:37:37,973 INFO L158 Benchmark]: Witness Printer took 8.02ms. Allocated memory is still 98.6MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:37:37,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14ms. Allocated memory is still 41.9MB. Free memory was 18.6MB in the beginning and 18.5MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1097.32ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 44.1MB in the end (delta: -6.4MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.27ms. Allocated memory is still 79.7MB. Free memory was 44.1MB in the beginning and 40.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.45ms. Allocated memory is still 79.7MB. Free memory was 40.7MB in the beginning and 36.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 873.53ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 36.9MB in the end (delta: -373.7kB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2571.42ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 35.9MB in the beginning and 65.7MB in the end (delta: -29.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 8.02ms. Allocated memory is still 98.6MB. Free memory is still 65.7MB. 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=-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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 2 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 25 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 3 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 13 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 10:37:38,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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