./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.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 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:28:08,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:28:08,367 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:28:08,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:28:08,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:28:08,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:28:08,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:28:08,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:28:08,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:28:08,408 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:28:08,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:28:08,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:28:08,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:28:08,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:28:08,410 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:28:08,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:28:08,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:28:08,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:28:08,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:28:08,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:28:08,413 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:28:08,417 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:28:08,418 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:28:08,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:28:08,418 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:28:08,418 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:28:08,419 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:28:08,419 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:28:08,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:28:08,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:28:08,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:28:08,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:28:08,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:28:08,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:28:08,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:28:08,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:28:08,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:28:08,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:28:08,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:28:08,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:28:08,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:28:08,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:28:08,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2024-10-13 12:28:08,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:28:08,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:28:08,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:28:08,733 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:28:08,734 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:28:08,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2024-10-13 12:28:10,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:28:10,574 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:28:10,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2024-10-13 12:28:10,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd2bb6b24/07dd718263b84f61aff34c1c89b25fff/FLAG11a21f0d6 [2024-10-13 12:28:10,615 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd2bb6b24/07dd718263b84f61aff34c1c89b25fff [2024-10-13 12:28:10,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:28:10,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:28:10,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:28:10,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:28:10,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:28:10,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:28:10" (1/1) ... [2024-10-13 12:28:10,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457dbd8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:10, skipping insertion in model container [2024-10-13 12:28:10,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:28:10" (1/1) ... [2024-10-13 12:28:10,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:28:11,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:28:11,209 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:28:11,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:28:11,325 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:28:11,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11 WrapperNode [2024-10-13 12:28:11,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:28:11,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:28:11,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:28:11,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:28:11,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,389 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2024-10-13 12:28:11,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:28:11,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:28:11,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:28:11,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:28:11,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,425 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]. [2024-10-13 12:28:11,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:28:11,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:28:11,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:28:11,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:28:11,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (1/1) ... [2024-10-13 12:28:11,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:28:11,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:28:11,494 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) [2024-10-13 12:28:11,497 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 [2024-10-13 12:28:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 12:28:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 12:28:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 12:28:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 12:28:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 12:28:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 12:28:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:28:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 12:28:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 12:28:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:28:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 12:28:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:28:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:28:11,557 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:28:11,725 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:28:11,727 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:28:11,924 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:28:11,924 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:28:12,022 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:28:12,022 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:28:12,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:28:12 BoogieIcfgContainer [2024-10-13 12:28:12,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:28:12,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:28:12,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:28:12,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:28:12,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:28:10" (1/3) ... [2024-10-13 12:28:12,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f797cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:28:12, skipping insertion in model container [2024-10-13 12:28:12,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:11" (2/3) ... [2024-10-13 12:28:12,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f797cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:28:12, skipping insertion in model container [2024-10-13 12:28:12,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:28:12" (3/3) ... [2024-10-13 12:28:12,034 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2024-10-13 12:28:12,054 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:28:12,055 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-10-13 12:28:12,055 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:28:12,101 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 12:28:12,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2024-10-13 12:28:12,178 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-13 12:28:12,179 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 12:28:12,181 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 58 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. [2024-10-13 12:28:12,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2024-10-13 12:28:12,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2024-10-13 12:28:12,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:28:12,200 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;@2bb7e3f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:28:12,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-13 12:28:12,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:28:12,206 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-10-13 12:28:12,206 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:28:12,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:28:12,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:28:12,208 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-13 12:28:12,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:28:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 954765430, now seen corresponding path program 1 times [2024-10-13 12:28:12,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:28:12,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129003322] [2024-10-13 12:28:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:28:12,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:28:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:28:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:28:12,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:28:12,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129003322] [2024-10-13 12:28:12,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129003322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:28:12,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:28:12,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:28:12,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83571939] [2024-10-13 12:28:12,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:28:12,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:28:12,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:28:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:28:12,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:28:12,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-10-13 12:28:12,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 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) [2024-10-13 12:28:12,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:28:12,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-10-13 12:28:12,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:28:12,718 INFO L124 PetriNetUnfolderBase]: 20/90 cut-off events. [2024-10-13 12:28:12,718 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 12:28:12,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 90 events. 20/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 343 event pairs, 20 based on Foata normal form. 5/79 useless extension candidates. Maximal degree in co-relation 134. Up to 52 conditions per place. [2024-10-13 12:28:12,723 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 11 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2024-10-13 12:28:12,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 80 flow [2024-10-13 12:28:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:28:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:28:12,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-10-13 12:28:12,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-10-13 12:28:12,744 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 3 states and 56 transitions. [2024-10-13 12:28:12,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 80 flow [2024-10-13 12:28:12,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:28:12,751 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 54 flow [2024-10-13 12:28:12,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2024-10-13 12:28:12,786 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2024-10-13 12:28:12,786 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 54 flow [2024-10-13 12:28:12,787 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) [2024-10-13 12:28:12,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:28:12,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:28:12,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:28:12,787 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-13 12:28:12,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:28:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash 954765431, now seen corresponding path program 1 times [2024-10-13 12:28:12,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:28:12,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231561112] [2024-10-13 12:28:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:28:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:28:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:28:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:28:12,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:28:12,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231561112] [2024-10-13 12:28:12,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231561112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:28:12,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:28:12,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:28:12,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274118350] [2024-10-13 12:28:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:28:12,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:28:12,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:28:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:28:12,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:28:12,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-10-13 12:28:12,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 54 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) [2024-10-13 12:28:12,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:28:12,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-10-13 12:28:12,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:28:13,039 INFO L124 PetriNetUnfolderBase]: 20/86 cut-off events. [2024-10-13 12:28:13,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:28:13,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 86 events. 20/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 305 event pairs, 20 based on Foata normal form. 5/77 useless extension candidates. Maximal degree in co-relation 137. Up to 52 conditions per place. [2024-10-13 12:28:13,040 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 11 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2024-10-13 12:28:13,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 74 flow [2024-10-13 12:28:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:28:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:28:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-10-13 12:28:13,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-10-13 12:28:13,046 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 54 flow. Second operand 3 states and 56 transitions. [2024-10-13 12:28:13,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 74 flow [2024-10-13 12:28:13,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:28:13,047 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 51 flow [2024-10-13 12:28:13,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2024-10-13 12:28:13,048 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-10-13 12:28:13,049 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 51 flow [2024-10-13 12:28:13,050 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) [2024-10-13 12:28:13,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:28:13,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:28:13,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:28:13,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-13 12:28:13,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:28:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash 955250611, now seen corresponding path program 1 times [2024-10-13 12:28:13,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:28:13,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821673104] [2024-10-13 12:28:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:28:13,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:28:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:28:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:28:13,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:28:13,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821673104] [2024-10-13 12:28:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821673104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:28:13,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:28:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:28:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037894478] [2024-10-13 12:28:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:28:13,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:28:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:28:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:28:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:28:13,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-10-13 12:28:13,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:28:13,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:28:13,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-10-13 12:28:13,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:28:13,277 INFO L124 PetriNetUnfolderBase]: 20/77 cut-off events. [2024-10-13 12:28:13,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:28:13,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 77 events. 20/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 238 event pairs, 0 based on Foata normal form. 5/76 useless extension candidates. Maximal degree in co-relation 128. Up to 46 conditions per place. [2024-10-13 12:28:13,279 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 14 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2024-10-13 12:28:13,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 87 flow [2024-10-13 12:28:13,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:28:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:28:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-10-13 12:28:13,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-10-13 12:28:13,284 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 51 flow. Second operand 4 states and 66 transitions. [2024-10-13 12:28:13,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 87 flow [2024-10-13 12:28:13,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:28:13,285 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 50 flow [2024-10-13 12:28:13,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2024-10-13 12:28:13,287 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-10-13 12:28:13,287 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 50 flow [2024-10-13 12:28:13,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:28:13,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:28:13,288 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:28:13,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:28:13,289 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-13 12:28:13,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:28:13,289 INFO L85 PathProgramCache]: Analyzing trace with hash 955250612, now seen corresponding path program 1 times [2024-10-13 12:28:13,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:28:13,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253794936] [2024-10-13 12:28:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:28:13,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:28:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:28:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:28:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:28:13,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253794936] [2024-10-13 12:28:13,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253794936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:28:13,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:28:13,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:28:13,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752907041] [2024-10-13 12:28:13,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:28:13,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:28:13,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:28:13,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:28:13,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:28:13,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-10-13 12:28:13,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:28:13,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:28:13,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-10-13 12:28:13,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:28:13,540 INFO L124 PetriNetUnfolderBase]: 20/67 cut-off events. [2024-10-13 12:28:13,544 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 12:28:13,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 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 174 event pairs, 0 based on Foata normal form. 5/71 useless extension candidates. Maximal degree in co-relation 123. Up to 46 conditions per place. [2024-10-13 12:28:13,545 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 14 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2024-10-13 12:28:13,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 86 flow [2024-10-13 12:28:13,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:28:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:28:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-10-13 12:28:13,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-10-13 12:28:13,547 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 50 flow. Second operand 4 states and 66 transitions. [2024-10-13 12:28:13,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 86 flow [2024-10-13 12:28:13,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 83 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:28:13,549 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 47 flow [2024-10-13 12:28:13,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=24, 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=47, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-10-13 12:28:13,549 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2024-10-13 12:28:13,550 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 47 flow [2024-10-13 12:28:13,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:28:13,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:28:13,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:28:13,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:28:13,552 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-13 12:28:13,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:28:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 847310718, now seen corresponding path program 1 times [2024-10-13 12:28:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:28:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110630790] [2024-10-13 12:28:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:28:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:28:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:28:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:28:13,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:28:13,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110630790] [2024-10-13 12:28:13,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110630790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:28:13,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:28:13,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:28:13,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16955683] [2024-10-13 12:28:13,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:28:13,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:28:13,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:28:13,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:28:13,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:28:13,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2024-10-13 12:28:13,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 47 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) [2024-10-13 12:28:13,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:28:13,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2024-10-13 12:28:13,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:28:13,699 INFO L124 PetriNetUnfolderBase]: 20/69 cut-off events. [2024-10-13 12:28:13,700 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 12:28:13,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 69 events. 20/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 188 event pairs, 20 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 130. Up to 52 conditions per place. [2024-10-13 12:28:13,700 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-10-13 12:28:13,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 69 flow [2024-10-13 12:28:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:28:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:28:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-10-13 12:28:13,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-13 12:28:13,704 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 47 flow. Second operand 3 states and 58 transitions. [2024-10-13 12:28:13,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 69 flow [2024-10-13 12:28:13,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:28:13,705 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-10-13 12:28:13,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, 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=26, PETRI_TRANSITIONS=0} [2024-10-13 12:28:13,706 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-10-13 12:28:13,706 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-10-13 12:28:13,708 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) [2024-10-13 12:28:13,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-10-13 12:28:13,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-10-13 12:28:13,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-10-13 12:28:13,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-10-13 12:28:13,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2024-10-13 12:28:13,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-10-13 12:28:13,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-10-13 12:28:13,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-10-13 12:28:13,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-10-13 12:28:13,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-10-13 12:28:13,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-10-13 12:28:13,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-10-13 12:28:13,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-10-13 12:28:13,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-10-13 12:28:13,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:28:13,716 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-13 12:28:13,724 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:28:13,724 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:28:13,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:28:13 BasicIcfg [2024-10-13 12:28:13,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:28:13,734 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:28:13,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:28:13,735 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:28:13,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:28:12" (3/4) ... [2024-10-13 12:28:13,737 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:28:13,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-13 12:28:13,744 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-10-13 12:28:13,746 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 12:28:13,746 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 12:28:13,746 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 12:28:13,873 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:28:13,874 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:28:13,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:28:13,875 INFO L158 Benchmark]: Toolchain (without parser) took 3255.53ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 127.8MB in the end (delta: -36.8MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,875 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:28:13,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.08ms. Allocated memory is still 159.4MB. Free memory was 90.8MB in the beginning and 108.9MB in the end (delta: -18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.72ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,877 INFO L158 Benchmark]: Boogie Preprocessor took 55.86ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,877 INFO L158 Benchmark]: RCFGBuilder took 573.17ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 81.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,877 INFO L158 Benchmark]: TraceAbstraction took 1708.77ms. Allocated memory is still 159.4MB. Free memory was 81.0MB in the beginning and 54.0MB in the end (delta: 27.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,878 INFO L158 Benchmark]: Witness Printer took 139.53ms. Allocated memory is still 159.4MB. Free memory was 53.1MB in the beginning and 127.8MB in the end (delta: -74.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-10-13 12:28:13,879 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.08ms. Allocated memory is still 159.4MB. Free memory was 90.8MB in the beginning and 108.9MB in the end (delta: -18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.72ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.86ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.17ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 81.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1708.77ms. Allocated memory is still 159.4MB. Free memory was 81.0MB in the beginning and 54.0MB in the end (delta: 27.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Witness Printer took 139.53ms. Allocated memory is still 159.4MB. Free memory was 53.1MB in the beginning and 127.8MB in the end (delta: -74.7MB). Peak memory consumption was 9.9MB. 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: 927]: 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 10 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2024-10-13 12:28:13,911 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: TRUE