./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f 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/goblint-regression/04-mutex_51-mutex_ptr.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 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:05:37,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:05:38,040 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:05:38,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:05:38,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:05:38,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:05:38,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:05:38,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:05:38,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:05:38,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:05:38,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:05:38,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:05:38,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:05:38,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:05:38,084 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:05:38,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:05:38,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:05:38,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:05:38,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:05:38,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:05:38,085 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:05:38,088 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:05:38,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:05:38,089 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:05:38,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:05:38,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:05:38,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:05:38,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:05:38,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:05:38,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:05:38,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:05:38,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:05:38,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:05:38,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:05:38,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:05:38,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:05:38,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2024-11-10 18:05:38,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:05:38,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:05:38,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:05:38,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:05:38,345 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:05:38,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2024-11-10 18:05:39,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:05:39,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:05:39,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2024-11-10 18:05:39,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21896aad4/2ae91a1d9d314fb9b371e4dac49eb46f/FLAG8001eb2fb [2024-11-10 18:05:39,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21896aad4/2ae91a1d9d314fb9b371e4dac49eb46f [2024-11-10 18:05:39,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:05:39,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:05:39,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:05:39,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:05:39,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:05:39,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:05:39" (1/1) ... [2024-11-10 18:05:39,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1862b4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:39, skipping insertion in model container [2024-11-10 18:05:39,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:05:39" (1/1) ... [2024-11-10 18:05:40,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:05:40,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:05:40,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:05:40,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:05:40,517 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:05:40,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40 WrapperNode [2024-11-10 18:05:40,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:05:40,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:05:40,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:05:40,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:05:40,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,574 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 92 [2024-11-10 18:05:40,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:05:40,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:05:40,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:05:40,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:05:40,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,617 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [5, 1]. The 2 writes are split as follows [0, 2]. [2024-11-10 18:05:40,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,625 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:05:40,641 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:05:40,641 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:05:40,641 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:05:40,642 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (1/1) ... [2024-11-10 18:05:40,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:05:40,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:05:40,676 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) [2024-11-10 18:05:40,679 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 [2024-11-10 18:05:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:05:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:05:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:05:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:05:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:05:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:05:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:05:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 18:05:40,727 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 18:05:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:05:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:05:40,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:05:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:05:40,729 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:05:40,840 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:05:40,842 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:05:40,991 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:05:40,992 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:05:41,198 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:05:41,199 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:05:41,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:05:41 BoogieIcfgContainer [2024-11-10 18:05:41,199 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:05:41,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:05:41,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:05:41,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:05:41,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:05:39" (1/3) ... [2024-11-10 18:05:41,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e1081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:05:41, skipping insertion in model container [2024-11-10 18:05:41,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:40" (2/3) ... [2024-11-10 18:05:41,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e1081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:05:41, skipping insertion in model container [2024-11-10 18:05:41,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:05:41" (3/3) ... [2024-11-10 18:05:41,208 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2024-11-10 18:05:41,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:05:41,223 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-10 18:05:41,224 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:05:41,263 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 18:05:41,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2024-11-10 18:05:41,323 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-10 18:05:41,323 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:05:41,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 28 events. 0/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 57 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-10 18:05:41,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2024-11-10 18:05:41,328 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2024-11-10 18:05:41,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:05:41,343 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;@7fa8aaa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:05:41,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-10 18:05:41,353 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:05:41,355 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-10 18:05:41,356 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:05:41,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:05:41,356 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 18:05:41,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-10 18:05:41,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:05:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash -403320101, now seen corresponding path program 1 times [2024-11-10 18:05:41,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:05:41,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062332703] [2024-11-10 18:05:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:05:41,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:05:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:05:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:05:41,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:05:41,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062332703] [2024-11-10 18:05:41,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062332703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:05:41,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:05:41,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:05:41,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699376007] [2024-11-10 18:05:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:05:41,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:05:41,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:05:41,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:05:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:05:41,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-11-10 18:05:41,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-10 18:05:41,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:05:41,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-11-10 18:05:41,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:05:41,868 INFO L124 PetriNetUnfolderBase]: 20/79 cut-off events. [2024-11-10 18:05:41,869 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:05:41,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 79 events. 20/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 263 event pairs, 0 based on Foata normal form. 11/83 useless extension candidates. Maximal degree in co-relation 123. Up to 47 conditions per place. [2024-11-10 18:05:41,872 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 15 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2024-11-10 18:05:41,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 94 flow [2024-11-10 18:05:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:05:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:05:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2024-11-10 18:05:41,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5775862068965517 [2024-11-10 18:05:41,886 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 4 states and 67 transitions. [2024-11-10 18:05:41,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 94 flow [2024-11-10 18:05:41,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:05:41,890 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 52 flow [2024-11-10 18:05:41,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2024-11-10 18:05:41,897 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-11-10 18:05:41,898 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 52 flow [2024-11-10 18:05:41,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-10 18:05:41,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:05:41,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 18:05:41,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:05:41,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-10 18:05:41,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:05:41,899 INFO L85 PathProgramCache]: Analyzing trace with hash -403320100, now seen corresponding path program 1 times [2024-11-10 18:05:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:05:41,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412442704] [2024-11-10 18:05:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:05:41,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:05:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:05:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:05:42,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:05:42,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412442704] [2024-11-10 18:05:42,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412442704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:05:42,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:05:42,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:05:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131115957] [2024-11-10 18:05:42,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:05:42,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:05:42,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:05:42,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:05:42,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:05:42,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 29 [2024-11-10 18:05:42,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-10 18:05:42,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:05:42,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 29 [2024-11-10 18:05:42,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:05:42,217 INFO L124 PetriNetUnfolderBase]: 20/67 cut-off events. [2024-11-10 18:05:42,218 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:05:42,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 67 events. 20/67 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 184 event pairs, 0 based on Foata normal form. 11/77 useless extension candidates. Maximal degree in co-relation 22. Up to 47 conditions per place. [2024-11-10 18:05:42,219 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 15 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2024-11-10 18:05:42,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 86 flow [2024-11-10 18:05:42,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:05:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:05:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2024-11-10 18:05:42,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5775862068965517 [2024-11-10 18:05:42,221 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 52 flow. Second operand 4 states and 67 transitions. [2024-11-10 18:05:42,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 86 flow [2024-11-10 18:05:42,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 83 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:05:42,222 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 45 flow [2024-11-10 18:05:42,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=45, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-11-10 18:05:42,223 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2024-11-10 18:05:42,223 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 45 flow [2024-11-10 18:05:42,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-10 18:05:42,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:05:42,224 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:05:42,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:05:42,226 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-11-10 18:05:42,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:05:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1795407120, now seen corresponding path program 1 times [2024-11-10 18:05:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:05:42,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132013026] [2024-11-10 18:05:42,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:05:42,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:05:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:05:42,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:05:42,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:05:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132013026] [2024-11-10 18:05:42,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132013026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:05:42,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:05:42,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:05:42,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056221272] [2024-11-10 18:05:42,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:05:42,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:05:42,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:05:42,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:05:42,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:05:42,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-11-10 18:05:42,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 45 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) [2024-11-10 18:05:42,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:05:42,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-11-10 18:05:42,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:05:42,364 INFO L124 PetriNetUnfolderBase]: 20/70 cut-off events. [2024-11-10 18:05:42,364 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-10 18:05:42,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 70 events. 20/70 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 190 event pairs, 20 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 98. Up to 53 conditions per place. [2024-11-10 18:05:42,365 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-11-10 18:05:42,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 69 flow [2024-11-10 18:05:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:05:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:05:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-10 18:05:42,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-10 18:05:42,366 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 45 flow. Second operand 3 states and 56 transitions. [2024-11-10 18:05:42,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 69 flow [2024-11-10 18:05:42,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:05:42,367 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-11-10 18:05:42,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-11-10 18:05:42,368 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2024-11-10 18:05:42,368 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-11-10 18:05:42,368 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) [2024-11-10 18:05:42,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-11-10 18:05:42,371 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-11-10 18:05:42,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-11-10 18:05:42,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-11-10 18:05:42,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-11-10 18:05:42,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-11-10 18:05:42,372 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-11-10 18:05:42,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:05:42,373 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 18:05:42,382 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:05:42,383 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:05:42,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:05:42 BasicIcfg [2024-11-10 18:05:42,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:05:42,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:05:42,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:05:42,388 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:05:42,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:05:41" (3/4) ... [2024-11-10 18:05:42,390 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:05:42,392 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 18:05:42,400 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-10 18:05:42,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-10 18:05:42,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-10 18:05:42,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 18:05:42,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 18:05:42,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:05:42,496 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:05:42,497 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:05:42,497 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:05:42,497 INFO L158 Benchmark]: Toolchain (without parser) took 2518.14ms. Allocated memory was 182.5MB in the beginning and 287.3MB in the end (delta: 104.9MB). Free memory was 123.1MB in the beginning and 251.7MB in the end (delta: -128.7MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,497 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:05:42,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.42ms. Allocated memory is still 182.5MB. Free memory was 123.1MB in the beginning and 91.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.04ms. Allocated memory is still 182.5MB. Free memory was 91.6MB in the beginning and 89.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,503 INFO L158 Benchmark]: Boogie Preprocessor took 64.84ms. Allocated memory is still 182.5MB. Free memory was 89.0MB in the beginning and 86.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,504 INFO L158 Benchmark]: IcfgBuilder took 558.45ms. Allocated memory was 182.5MB in the beginning and 287.3MB in the end (delta: 104.9MB). Free memory was 86.6MB in the beginning and 242.4MB in the end (delta: -155.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,504 INFO L158 Benchmark]: TraceAbstraction took 1185.74ms. Allocated memory is still 287.3MB. Free memory was 241.3MB in the beginning and 121.8MB in the end (delta: 119.5MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,504 INFO L158 Benchmark]: Witness Printer took 108.97ms. Allocated memory is still 287.3MB. Free memory was 121.8MB in the beginning and 251.7MB in the end (delta: -129.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-10 18:05:42,505 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.42ms. Allocated memory is still 182.5MB. Free memory was 123.1MB in the beginning and 91.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.04ms. Allocated memory is still 182.5MB. Free memory was 91.6MB in the beginning and 89.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.84ms. Allocated memory is still 182.5MB. Free memory was 89.0MB in the beginning and 86.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 558.45ms. Allocated memory was 182.5MB in the beginning and 287.3MB in the end (delta: 104.9MB). Free memory was 86.6MB in the beginning and 242.4MB in the end (delta: -155.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1185.74ms. Allocated memory is still 287.3MB. Free memory was 241.3MB in the beginning and 121.8MB in the end (delta: 119.5MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. * Witness Printer took 108.97ms. Allocated memory is still 287.3MB. Free memory was 121.8MB in the beginning and 251.7MB in the end (delta: -129.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 930]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 14 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 2 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 18:05:42,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE