./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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-assert-order-craig-3061b6d-m [2024-11-19 09:37:34,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:37:34,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:37:34,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:37:34,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:37:34,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:37:34,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:37:34,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:37:34,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:37:34,568 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:37:34,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:37:34,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:37:34,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:37:34,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:37:34,572 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:37:34,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:37:34,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:37:34,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:37:34,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:37:34,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:37:34,574 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:37:34,578 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:37:34,578 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:37:34,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:37:34,579 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:37:34,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:37:34,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:37:34,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:37:34,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:37:34,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:37:34,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:37:34,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:37:34,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:37:34,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:37:34,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:37:34,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:37:34,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:37:34,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:37:34,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:37:34,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:37:34,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:37:34,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:37:34,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2024-11-19 09:37:34,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:37:34,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:37:34,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:37:34,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:37:34,856 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:37:34,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2024-11-19 09:37:36,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:37:36,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:37:36,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2024-11-19 09:37:36,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdec8b3a1/952c290c780e4954992900257e33708b/FLAG7ab4a8c54 [2024-11-19 09:37:36,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdec8b3a1/952c290c780e4954992900257e33708b [2024-11-19 09:37:36,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:37:36,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:37:36,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:37:36,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:37:36,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:37:36,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:36" (1/1) ... [2024-11-19 09:37:36,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b48e971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:36, skipping insertion in model container [2024-11-19 09:37:36,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:36" (1/1) ... [2024-11-19 09:37:36,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:37:37,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:37:37,147 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:37:37,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:37:37,262 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:37:37,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37 WrapperNode [2024-11-19 09:37:37,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:37:37,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:37:37,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:37:37,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:37:37,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,319 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2024-11-19 09:37:37,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:37:37,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:37:37,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:37:37,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:37:37,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,352 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]. [2024-11-19 09:37:37,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:37:37,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:37:37,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:37:37,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:37:37,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (1/1) ... [2024-11-19 09:37:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:37:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:37:37,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 09:37:37,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 09:37:37,462 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 09:37:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 09:37:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 09:37:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 09:37:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 09:37:37,463 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 09:37:37,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:37:37,464 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 09:37:37,464 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 09:37:37,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:37:37,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:37:37,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:37:37,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:37:37,467 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:37:37,633 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:37:37,636 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:37:37,862 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:37:37,863 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:37:38,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:37:38,139 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:37:38,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:38 BoogieIcfgContainer [2024-11-19 09:37:38,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:37:38,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:37:38,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:37:38,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:37:38,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:37:36" (1/3) ... [2024-11-19 09:37:38,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758e948b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:38, skipping insertion in model container [2024-11-19 09:37:38,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:37" (2/3) ... [2024-11-19 09:37:38,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758e948b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:38, skipping insertion in model container [2024-11-19 09:37:38,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:38" (3/3) ... [2024-11-19 09:37:38,150 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2024-11-19 09:37:38,167 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:37:38,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-19 09:37:38,168 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:37:38,230 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 09:37:38,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2024-11-19 09:37:38,293 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-19 09:37:38,294 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 09:37:38,296 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. [2024-11-19 09:37:38,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2024-11-19 09:37:38,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2024-11-19 09:37:38,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:37:38,322 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;@ae7c465, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:37:38,323 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 09:37:38,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:37:38,331 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-19 09:37:38,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:38,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:38,333 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 09:37:38,333 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)] === [2024-11-19 09:37:38,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash -559357002, now seen corresponding path program 1 times [2024-11-19 09:37:38,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:38,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395275287] [2024-11-19 09:37:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:38,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:38,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:38,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395275287] [2024-11-19 09:37:38,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395275287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:38,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:38,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:38,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671299060] [2024-11-19 09:37:38,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:38,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:38,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:38,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-11-19 09:37:38,808 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) [2024-11-19 09:37:38,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:38,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-11-19 09:37:38,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:38,861 INFO L124 PetriNetUnfolderBase]: 20/90 cut-off events. [2024-11-19 09:37:38,861 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 09:37:38,863 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. [2024-11-19 09:37:38,864 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 11 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2024-11-19 09:37:38,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 80 flow [2024-11-19 09:37:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-19 09:37:38,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-19 09:37:38,879 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 3 states and 56 transitions. [2024-11-19 09:37:38,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 80 flow [2024-11-19 09:37:38,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:37:38,883 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 54 flow [2024-11-19 09:37:38,885 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} [2024-11-19 09:37:38,890 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2024-11-19 09:37:38,891 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 54 flow [2024-11-19 09:37:38,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:38,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:38,892 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 09:37:38,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:37:38,892 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)] === [2024-11-19 09:37:38,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:38,894 INFO L85 PathProgramCache]: Analyzing trace with hash -559357001, now seen corresponding path program 1 times [2024-11-19 09:37:38,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:38,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800265551] [2024-11-19 09:37:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:38,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:39,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:39,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800265551] [2024-11-19 09:37:39,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800265551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:39,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:39,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:39,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963239413] [2024-11-19 09:37:39,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:39,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:39,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:39,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:39,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-11-19 09:37:39,103 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) [2024-11-19 09:37:39,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:39,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-11-19 09:37:39,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:39,148 INFO L124 PetriNetUnfolderBase]: 20/86 cut-off events. [2024-11-19 09:37:39,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:39,149 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. [2024-11-19 09:37:39,150 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 11 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2024-11-19 09:37:39,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 74 flow [2024-11-19 09:37:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-19 09:37:39,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-19 09:37:39,156 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 54 flow. Second operand 3 states and 56 transitions. [2024-11-19 09:37:39,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 74 flow [2024-11-19 09:37:39,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:39,159 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 51 flow [2024-11-19 09:37:39,160 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} [2024-11-19 09:37:39,161 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-11-19 09:37:39,163 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 51 flow [2024-11-19 09:37:39,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:39,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:39,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 09:37:39,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:37:39,164 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)] === [2024-11-19 09:37:39,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:39,165 INFO L85 PathProgramCache]: Analyzing trace with hash -558871821, now seen corresponding path program 1 times [2024-11-19 09:37:39,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:39,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500811495] [2024-11-19 09:37:39,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:39,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:39,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500811495] [2024-11-19 09:37:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500811495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:39,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:39,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131934707] [2024-11-19 09:37:39,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:39,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:37:39,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:39,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:37:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:37:39,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-19 09:37:39,325 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) [2024-11-19 09:37:39,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:39,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-19 09:37:39,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:39,400 INFO L124 PetriNetUnfolderBase]: 20/77 cut-off events. [2024-11-19 09:37:39,401 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:39,401 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. [2024-11-19 09:37:39,404 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 14 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2024-11-19 09:37:39,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 87 flow [2024-11-19 09:37:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:37:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:37:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-19 09:37:39,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-11-19 09:37:39,406 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 51 flow. Second operand 4 states and 66 transitions. [2024-11-19 09:37:39,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 87 flow [2024-11-19 09:37:39,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:39,407 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 50 flow [2024-11-19 09:37:39,407 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} [2024-11-19 09:37:39,408 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-11-19 09:37:39,409 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 50 flow [2024-11-19 09:37:39,410 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) [2024-11-19 09:37:39,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:39,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 09:37:39,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:37:39,411 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)] === [2024-11-19 09:37:39,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash -558871820, now seen corresponding path program 1 times [2024-11-19 09:37:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588167437] [2024-11-19 09:37:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:39,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:39,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:39,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588167437] [2024-11-19 09:37:39,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588167437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:39,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:39,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:39,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26439177] [2024-11-19 09:37:39,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:39,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:37:39,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:39,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:37:39,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:37:39,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-19 09:37:39,598 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) [2024-11-19 09:37:39,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:39,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-19 09:37:39,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:39,653 INFO L124 PetriNetUnfolderBase]: 20/67 cut-off events. [2024-11-19 09:37:39,653 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:37:39,653 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. [2024-11-19 09:37:39,654 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 14 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2024-11-19 09:37:39,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 86 flow [2024-11-19 09:37:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:37:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:37:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-19 09:37:39,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-11-19 09:37:39,656 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 50 flow. Second operand 4 states and 66 transitions. [2024-11-19 09:37:39,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 86 flow [2024-11-19 09:37:39,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 83 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:37:39,657 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 47 flow [2024-11-19 09:37:39,657 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} [2024-11-19 09:37:39,658 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2024-11-19 09:37:39,658 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 47 flow [2024-11-19 09:37:39,659 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) [2024-11-19 09:37:39,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:39,659 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:39,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:37:39,659 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)] === [2024-11-19 09:37:39,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:39,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1292665316, now seen corresponding path program 1 times [2024-11-19 09:37:39,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:39,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116967315] [2024-11-19 09:37:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:39,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:39,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:39,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116967315] [2024-11-19 09:37:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116967315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:39,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:39,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852801762] [2024-11-19 09:37:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:39,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:39,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:39,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2024-11-19 09:37:39,744 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) [2024-11-19 09:37:39,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:39,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2024-11-19 09:37:39,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:39,783 INFO L124 PetriNetUnfolderBase]: 20/69 cut-off events. [2024-11-19 09:37:39,784 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:37:39,784 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. [2024-11-19 09:37:39,784 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-11-19 09:37:39,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 69 flow [2024-11-19 09:37:39,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:39,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-11-19 09:37:39,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-19 09:37:39,786 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 47 flow. Second operand 3 states and 58 transitions. [2024-11-19 09:37:39,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 69 flow [2024-11-19 09:37:39,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:37:39,787 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-11-19 09:37:39,787 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} [2024-11-19 09:37:39,789 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-11-19 09:37:39,790 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-11-19 09:37:39,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:37:39,793 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-11-19 09:37:39,794 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-11-19 09:37:39,794 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-11-19 09:37:39,794 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-11-19 09:37:39,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2024-11-19 09:37:39,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-19 09:37:39,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-11-19 09:37:39,795 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-11-19 09:37:39,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-11-19 09:37:39,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-11-19 09:37:39,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-11-19 09:37:39,796 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-11-19 09:37:39,797 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-11-19 09:37:39,797 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-11-19 09:37:39,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:37:39,797 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 09:37:39,805 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:37:39,805 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:37:39,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:37:39 BasicIcfg [2024-11-19 09:37:39,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:37:39,817 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:37:39,817 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:37:39,817 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:37:39,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:38" (3/4) ... [2024-11-19 09:37:39,821 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:37:39,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 09:37:39,836 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2024-11-19 09:37:39,837 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-19 09:37:39,837 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:37:39,837 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 09:37:39,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:37:39,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:37:39,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:37:39,934 INFO L158 Benchmark]: Toolchain (without parser) took 3264.11ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 122.5MB in the beginning and 151.9MB in the end (delta: -29.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,934 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:37:39,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.21ms. Allocated memory is still 151.0MB. Free memory was 122.5MB in the beginning and 91.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.22ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,935 INFO L158 Benchmark]: Boogie Preprocessor took 48.91ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 87.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,935 INFO L158 Benchmark]: RCFGBuilder took 770.04ms. Allocated memory is still 151.0MB. Free memory was 87.0MB in the beginning and 110.2MB in the end (delta: -23.2MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,935 INFO L158 Benchmark]: TraceAbstraction took 1674.91ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 109.9MB in the beginning and 156.1MB in the end (delta: -46.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,936 INFO L158 Benchmark]: Witness Printer took 116.13ms. Allocated memory is still 211.8MB. Free memory was 156.1MB in the beginning and 151.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:37:39,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.21ms. Allocated memory is still 151.0MB. Free memory was 122.5MB in the beginning and 91.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.22ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.91ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 87.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 770.04ms. Allocated memory is still 151.0MB. Free memory was 87.0MB in the beginning and 110.2MB in the end (delta: -23.2MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1674.91ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 109.9MB in the beginning and 156.1MB in the end (delta: -46.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 116.13ms. Allocated memory is still 211.8MB. Free memory was 156.1MB in the beginning and 151.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 0.5s 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! [2024-11-19 09:37:39,970 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