./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_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 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_46-escape_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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:32:47,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:32:47,256 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:32:47,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:32:47,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:32:47,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:32:47,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:32:47,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:32:47,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:32:47,287 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:32:47,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:32:47,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:32:47,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:32:47,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:32:47,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:32:47,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:32:47,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:32:47,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:32:47,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:32:47,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:32:47,291 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:32:47,292 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:32:47,292 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:32:47,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:32:47,293 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:32:47,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:32:47,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:32:47,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:32:47,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:32:47,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:32:47,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:32:47,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:32:47,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:32:47,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:32:47,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:32:47,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:32:47,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:32:47,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:32:47,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:32:47,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:32:47,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:32:47,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:32:47,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2024-11-20 17:32:47,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:32:47,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:32:47,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:32:47,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:32:47,576 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:32:47,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-20 17:32:49,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:32:49,259 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:32:49,260 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-20 17:32:49,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff690ec0/d99e272ccb704d4c85e1645d3669ddbf/FLAG73dee0b68 [2024-11-20 17:32:49,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff690ec0/d99e272ccb704d4c85e1645d3669ddbf [2024-11-20 17:32:49,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:32:49,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:32:49,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:32:49,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:32:49,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:32:49,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:49" (1/1) ... [2024-11-20 17:32:49,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab58d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:49, skipping insertion in model container [2024-11-20 17:32:49,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:49" (1/1) ... [2024-11-20 17:32:49,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:32:50,039 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:32:50,050 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:32:50,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:32:50,076 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:32:50,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:32:50,178 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:32:50,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50 WrapperNode [2024-11-20 17:32:50,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:32:50,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:32:50,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:32:50,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:32:50,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,222 INFO L138 Inliner]: procedures = 264, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 104 [2024-11-20 17:32:50,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:32:50,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:32:50,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:32:50,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:32:50,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,266 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [5, 6]. 55 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]. [2024-11-20 17:32:50,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:32:50,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:32:50,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:32:50,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:32:50,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (1/1) ... [2024-11-20 17:32:50,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:32:50,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:32:50,331 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) [2024-11-20 17:32:50,334 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 [2024-11-20 17:32:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 17:32:50,385 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 17:32:50,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:32:50,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:32:50,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:32:50,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:32:50,387 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:32:50,554 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:32:50,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:32:50,795 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:32:50,796 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:32:51,153 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:32:51,153 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:32:51,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:51 BoogieIcfgContainer [2024-11-20 17:32:51,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:32:51,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:32:51,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:32:51,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:32:51,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:32:49" (1/3) ... [2024-11-20 17:32:51,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcf0c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:32:51, skipping insertion in model container [2024-11-20 17:32:51,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:50" (2/3) ... [2024-11-20 17:32:51,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcf0c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:32:51, skipping insertion in model container [2024-11-20 17:32:51,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:51" (3/3) ... [2024-11-20 17:32:51,164 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2024-11-20 17:32:51,182 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:32:51,182 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-11-20 17:32:51,183 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:32:51,225 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 17:32:51,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 34 transitions, 75 flow [2024-11-20 17:32:51,292 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-20 17:32:51,292 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 17:32:51,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 1/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 66 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2024-11-20 17:32:51,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 34 transitions, 75 flow [2024-11-20 17:32:51,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 32 transitions, 70 flow [2024-11-20 17:32:51,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:32:51,324 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;@2bcb8d95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:32:51,324 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-20 17:32:51,328 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:32:51,328 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-20 17:32:51,328 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:32:51,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:32:51,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-20 17:32:51,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 13 more)] === [2024-11-20 17:32:51,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:32:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash 9808, now seen corresponding path program 1 times [2024-11-20 17:32:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:32:51,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931778588] [2024-11-20 17:32:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:32:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:32:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:32:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:32:51,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:32:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931778588] [2024-11-20 17:32:51,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931778588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:32:51,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:32:51,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:32:51,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420187372] [2024-11-20 17:32:51,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:32:51,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:32:51,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:32:51,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:32:51,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:32:51,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-20 17:32:51,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-20 17:32:51,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:32:51,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-20 17:32:51,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:32:51,892 INFO L124 PetriNetUnfolderBase]: 31/108 cut-off events. [2024-11-20 17:32:51,892 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2024-11-20 17:32:51,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 108 events. 31/108 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 375 event pairs, 30 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 170. Up to 76 conditions per place. [2024-11-20 17:32:51,896 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 15 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2024-11-20 17:32:51,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 100 flow [2024-11-20 17:32:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:32:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:32:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-11-20 17:32:51,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2024-11-20 17:32:51,906 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 70 flow. Second operand 3 states and 57 transitions. [2024-11-20 17:32:51,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 100 flow [2024-11-20 17:32:51,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:32:51,911 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 66 flow [2024-11-20 17:32:51,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2024-11-20 17:32:51,917 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2024-11-20 17:32:51,917 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 66 flow [2024-11-20 17:32:51,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-20 17:32:51,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:32:51,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-20 17:32:51,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:32:51,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 13 more)] === [2024-11-20 17:32:51,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:32:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash 9809, now seen corresponding path program 1 times [2024-11-20 17:32:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:32:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341295166] [2024-11-20 17:32:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:32:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:32:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:32:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:32:52,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:32:52,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341295166] [2024-11-20 17:32:52,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341295166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:32:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:32:52,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:32:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654022461] [2024-11-20 17:32:52,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:32:52,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:32:52,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:32:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:32:52,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:32:52,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 34 [2024-11-20 17:32:52,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-20 17:32:52,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:32:52,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 34 [2024-11-20 17:32:52,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:32:52,181 INFO L124 PetriNetUnfolderBase]: 31/99 cut-off events. [2024-11-20 17:32:52,181 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-20 17:32:52,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 99 events. 31/99 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 305 event pairs, 30 based on Foata normal form. 1/95 useless extension candidates. Maximal degree in co-relation 170. Up to 75 conditions per place. [2024-11-20 17:32:52,184 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 14 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2024-11-20 17:32:52,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 94 flow [2024-11-20 17:32:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:32:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:32:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-20 17:32:52,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5784313725490197 [2024-11-20 17:32:52,186 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 66 flow. Second operand 3 states and 59 transitions. [2024-11-20 17:32:52,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 94 flow [2024-11-20 17:32:52,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:32:52,187 INFO L231 Difference]: Finished difference. Result has 29 places, 26 transitions, 60 flow [2024-11-20 17:32:52,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=26} [2024-11-20 17:32:52,188 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -6 predicate places. [2024-11-20 17:32:52,188 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 60 flow [2024-11-20 17:32:52,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-20 17:32:52,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:32:52,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:32:52,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:32:52,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 13 more)] === [2024-11-20 17:32:52,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:32:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash 9433171, now seen corresponding path program 1 times [2024-11-20 17:32:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:32:52,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685713169] [2024-11-20 17:32:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:32:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:32:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:32:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:32:52,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:32:52,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685713169] [2024-11-20 17:32:52,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685713169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:32:52,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:32:52,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:32:52,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389741144] [2024-11-20 17:32:52,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:32:52,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:32:52,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:32:52,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:32:52,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:32:52,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2024-11-20 17:32:52,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-20 17:32:52,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:32:52,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2024-11-20 17:32:52,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:32:52,467 INFO L124 PetriNetUnfolderBase]: 31/98 cut-off events. [2024-11-20 17:32:52,467 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-20 17:32:52,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 98 events. 31/98 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 304 event pairs, 30 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 170. Up to 75 conditions per place. [2024-11-20 17:32:52,469 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 10 selfloop transitions, 1 changer transitions 6/25 dead transitions. [2024-11-20 17:32:52,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 92 flow [2024-11-20 17:32:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:32:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:32:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-11-20 17:32:52,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5735294117647058 [2024-11-20 17:32:52,471 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 60 flow. Second operand 4 states and 78 transitions. [2024-11-20 17:32:52,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 92 flow [2024-11-20 17:32:52,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:32:52,472 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 41 flow [2024-11-20 17:32:52,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=4, PETRI_FLOW=41, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2024-11-20 17:32:52,473 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -6 predicate places. [2024-11-20 17:32:52,474 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 41 flow [2024-11-20 17:32:52,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-20 17:32:52,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:32:52,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:32:52,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:32:52,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 13 more)] === [2024-11-20 17:32:52,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:32:52,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1594574793, now seen corresponding path program 1 times [2024-11-20 17:32:52,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:32:52,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383808818] [2024-11-20 17:32:52,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:32:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:32:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:32:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:32:52,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:32:52,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383808818] [2024-11-20 17:32:52,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383808818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:32:52,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:32:52,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:32:52,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290599611] [2024-11-20 17:32:52,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:32:52,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:32:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:32:52,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:32:52,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:32:52,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-20 17:32:52,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:32:52,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:32:52,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-20 17:32:52,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:32:52,707 INFO L124 PetriNetUnfolderBase]: 15/62 cut-off events. [2024-11-20 17:32:52,707 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:32:52,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 62 events. 15/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 185 event pairs, 0 based on Foata normal form. 6/68 useless extension candidates. Maximal degree in co-relation 103. Up to 33 conditions per place. [2024-11-20 17:32:52,708 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 14 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2024-11-20 17:32:52,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 22 transitions, 81 flow [2024-11-20 17:32:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:32:52,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:32:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2024-11-20 17:32:52,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40588235294117647 [2024-11-20 17:32:52,710 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 41 flow. Second operand 5 states and 69 transitions. [2024-11-20 17:32:52,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 22 transitions, 81 flow [2024-11-20 17:32:52,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:32:52,712 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 42 flow [2024-11-20 17:32:52,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2024-11-20 17:32:52,712 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -11 predicate places. [2024-11-20 17:32:52,713 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 42 flow [2024-11-20 17:32:52,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:32:52,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:32:52,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:32:52,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:32:52,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (and 13 more)] === [2024-11-20 17:32:52,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:32:52,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1594574794, now seen corresponding path program 1 times [2024-11-20 17:32:52,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:32:52,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803694620] [2024-11-20 17:32:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:32:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:32:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:32:52,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:32:52,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:32:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803694620] [2024-11-20 17:32:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803694620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:32:52,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:32:52,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:32:52,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494497550] [2024-11-20 17:32:52,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:32:52,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:32:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:32:52,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:32:52,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:32:52,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-20 17:32:52,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 42 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-20 17:32:52,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:32:52,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-20 17:32:52,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:32:53,017 INFO L124 PetriNetUnfolderBase]: 15/50 cut-off events. [2024-11-20 17:32:53,018 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 17:32:53,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 50 events. 15/50 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 0 based on Foata normal form. 6/56 useless extension candidates. Maximal degree in co-relation 97. Up to 33 conditions per place. [2024-11-20 17:32:53,018 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-11-20 17:32:53,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 80 flow [2024-11-20 17:32:53,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:32:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:32:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-11-20 17:32:53,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4294117647058823 [2024-11-20 17:32:53,021 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 42 flow. Second operand 5 states and 73 transitions. [2024-11-20 17:32:53,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 80 flow [2024-11-20 17:32:53,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 75 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:32:53,022 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-11-20 17:32:53,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-11-20 17:32:53,023 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -12 predicate places. [2024-11-20 17:32:53,023 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-11-20 17:32:53,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-20 17:32:53,026 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 16 remaining) [2024-11-20 17:32:53,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 16 remaining) [2024-11-20 17:32:53,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (13 of 16 remaining) [2024-11-20 17:32:53,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2024-11-20 17:32:53,027 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2024-11-20 17:32:53,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2024-11-20 17:32:53,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2024-11-20 17:32:53,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2024-11-20 17:32:53,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2024-11-20 17:32:53,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2024-11-20 17:32:53,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 16 remaining) [2024-11-20 17:32:53,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 16 remaining) [2024-11-20 17:32:53,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 16 remaining) [2024-11-20 17:32:53,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 16 remaining) [2024-11-20 17:32:53,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 16 remaining) [2024-11-20 17:32:53,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 16 remaining) [2024-11-20 17:32:53,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:32:53,030 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 17:32:53,040 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:32:53,040 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:32:53,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:32:53 BasicIcfg [2024-11-20 17:32:53,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:32:53,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:32:53,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:32:53,048 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:32:53,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:51" (3/4) ... [2024-11-20 17:32:53,054 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:32:53,058 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-20 17:32:53,063 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 90 nodes and edges [2024-11-20 17:32:53,065 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-20 17:32:53,079 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 17:32:53,080 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 17:32:53,175 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:32:53,175 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:32:53,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:32:53,176 INFO L158 Benchmark]: Toolchain (without parser) took 3582.78ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 79.5MB in the beginning and 152.9MB in the end (delta: -73.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,177 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:32:53,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.96ms. Allocated memory is still 148.9MB. Free memory was 79.2MB in the beginning and 96.1MB in the end (delta: -17.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.63ms. Allocated memory is still 148.9MB. Free memory was 96.1MB in the beginning and 93.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,177 INFO L158 Benchmark]: Boogie Preprocessor took 58.65ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 91.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,178 INFO L158 Benchmark]: RCFGBuilder took 868.41ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 93.1MB in the end (delta: -2.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,178 INFO L158 Benchmark]: TraceAbstraction took 1891.05ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 92.5MB in the beginning and 68.4MB in the end (delta: 24.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,178 INFO L158 Benchmark]: Witness Printer took 128.15ms. Allocated memory is still 190.8MB. Free memory was 68.4MB in the beginning and 152.9MB in the end (delta: -84.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:32:53,180 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 96.5MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.96ms. Allocated memory is still 148.9MB. Free memory was 79.2MB in the beginning and 96.1MB in the end (delta: -17.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.63ms. Allocated memory is still 148.9MB. Free memory was 96.1MB in the beginning and 93.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.65ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 91.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 868.41ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 93.1MB in the end (delta: -2.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1891.05ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 92.5MB in the beginning and 68.4MB in the end (delta: 24.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 128.15ms. Allocated memory is still 190.8MB. Free memory was 68.4MB in the beginning and 152.9MB in the end (delta: -84.6MB). Peak memory consumption was 2.1MB. 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: 928]: 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 - 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, 47 locations, 16 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: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 267 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 98 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 55 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 123 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 17:32:53,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE