./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-ext/25_stack_longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc 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/pthread-ext/25_stack_longer-2.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 f92b704990a995ec2f32d8abc59f9e1c173271b08c590da02eb7a88d6ef9eed6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:22:08,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:22:08,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:22:08,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:22:08,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:22:08,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:22:08,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:22:08,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:22:08,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:22:08,753 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:22:08,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:22:08,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:22:08,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:22:08,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:22:08,755 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:22:08,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:22:08,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:22:08,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:22:08,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:22:08,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:22:08,758 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:22:08,759 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:22:08,759 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:22:08,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:22:08,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:22:08,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:22:08,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:22:08,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:22:08,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:22:08,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:22:08,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:22:08,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:22:08,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:22:08,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:22:08,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:22:08,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:22:08,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:22:08,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:22:08,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:22:08,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:22:08,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:22:08,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:22:08,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f92b704990a995ec2f32d8abc59f9e1c173271b08c590da02eb7a88d6ef9eed6 [2024-11-19 09:22:09,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:22:09,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:22:09,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:22:09,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:22:09,085 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:22:09,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/25_stack_longer-2.i [2024-11-19 09:22:10,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:22:10,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:22:10,797 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/25_stack_longer-2.i [2024-11-19 09:22:10,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6154b5bb0/f2c217cedea146909e0926dcb05db477/FLAGc18cb77ae [2024-11-19 09:22:10,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6154b5bb0/f2c217cedea146909e0926dcb05db477 [2024-11-19 09:22:10,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:22:10,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:22:10,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:22:10,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:22:10,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:22:10,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:22:10" (1/1) ... [2024-11-19 09:22:10,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ff9e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:10, skipping insertion in model container [2024-11-19 09:22:10,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:22:10" (1/1) ... [2024-11-19 09:22:10,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:22:11,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:22:11,285 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:22:11,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:22:11,434 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:22:11,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11 WrapperNode [2024-11-19 09:22:11,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:22:11,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:22:11,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:22:11,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:22:11,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,519 INFO L138 Inliner]: procedures = 171, calls = 36, calls flagged for inlining = 10, calls inlined = 9, statements flattened = 777 [2024-11-19 09:22:11,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:22:11,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:22:11,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:22:11,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:22:11,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,595 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-19 09:22:11,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:22:11,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:22:11,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:22:11,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:22:11,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (1/1) ... [2024-11-19 09:22:11,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:22:11,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:22:11,693 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) [2024-11-19 09:22:11,696 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 [2024-11-19 09:22:11,751 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-19 09:22:11,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-19 09:22:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 09:22:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:22:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:22:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:22:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:22:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 09:22:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:22:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 09:22:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:22:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:22:11,756 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:22:11,890 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:22:11,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:22:12,707 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:22:12,708 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:22:25,187 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:22:25,187 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 09:22:25,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:22:25 BoogieIcfgContainer [2024-11-19 09:22:25,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:22:25,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:22:25,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:22:25,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:22:25,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:22:10" (1/3) ... [2024-11-19 09:22:25,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1808ee7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:22:25, skipping insertion in model container [2024-11-19 09:22:25,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:22:11" (2/3) ... [2024-11-19 09:22:25,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1808ee7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:22:25, skipping insertion in model container [2024-11-19 09:22:25,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:22:25" (3/3) ... [2024-11-19 09:22:25,200 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-2.i [2024-11-19 09:22:25,218 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:22:25,218 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 09:22:25,219 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:22:25,435 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:22:25,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 41 transitions, 86 flow [2024-11-19 09:22:25,561 INFO L124 PetriNetUnfolderBase]: 4/45 cut-off events. [2024-11-19 09:22:25,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:22:25,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 45 events. 4/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-19 09:22:25,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 41 transitions, 86 flow [2024-11-19 09:22:25,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 41 transitions, 86 flow [2024-11-19 09:22:25,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:22:25,591 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;@10e63cac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:22:25,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-19 09:22:25,633 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:22:25,635 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-19 09:22:25,637 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:22:25,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:22:25,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 09:22:25,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0ASSERT_VIOLATIONARRAY_INDEX, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err1ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-19 09:22:25,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:22:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1671906, now seen corresponding path program 1 times [2024-11-19 09:22:25,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:22:25,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776822507] [2024-11-19 09:22:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:22:25,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms