./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/13-privatized_03-priv_inv.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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/13-privatized_03-priv_inv.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 f20707f1105ba10067156ebf4074b2c6b4682bff1e09b23f43a3f8b7604511aa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:42:06,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:42:06,156 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:42:06,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:42:06,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:42:06,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:42:06,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:42:06,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:42:06,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:42:06,193 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:42:06,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:42:06,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:42:06,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:42:06,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:42:06,199 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:42:06,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:42:06,200 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:42:06,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:42:06,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:42:06,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:42:06,201 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:42:06,201 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:42:06,201 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:42:06,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:42:06,202 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:42:06,202 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:42:06,204 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:42:06,204 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:42:06,204 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:42:06,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:42:06,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:42:06,206 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:42:06,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:42:06,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:42:06,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:42:06,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:42:06,207 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:42:06,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:42:06,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:42:06,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:42:06,208 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:42:06,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:42:06,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f20707f1105ba10067156ebf4074b2c6b4682bff1e09b23f43a3f8b7604511aa [2024-10-14 19:42:06,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:42:06,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:42:06,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:42:06,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:42:06,476 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:42:06,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_03-priv_inv.i [2024-10-14 19:42:07,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:42:08,095 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:42:08,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_03-priv_inv.i [2024-10-14 19:42:08,114 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebdf9f477/061d5846ee6142948b883b62f001546b/FLAGa33be584a [2024-10-14 19:42:08,127 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebdf9f477/061d5846ee6142948b883b62f001546b [2024-10-14 19:42:08,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:42:08,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:42:08,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:42:08,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:42:08,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:42:08,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fba010a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08, skipping insertion in model container [2024-10-14 19:42:08,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:42:08,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:42:08,484 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:42:08,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:42:08,584 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:42:08,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08 WrapperNode [2024-10-14 19:42:08,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:42:08,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:42:08,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:42:08,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:42:08,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,636 INFO L138 Inliner]: procedures = 165, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-10-14 19:42:08,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:42:08,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:42:08,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:42:08,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:42:08,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,653 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,669 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [7, 7, 5]. 37 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [7, 7, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-10-14 19:42:08,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:42:08,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:42:08,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:42:08,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:42:08,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (1/1) ... [2024-10-14 19:42:08,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:42:08,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:42:08,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 19:42:08,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 19:42:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 19:42:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:42:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 19:42:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 19:42:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:42:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 19:42:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 19:42:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 19:42:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:42:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:42:08,782 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:42:08,933 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:42:08,935 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:42:09,093 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:42:09,093 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:42:09,238 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:42:09,238 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:42:09,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:42:09 BoogieIcfgContainer [2024-10-14 19:42:09,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:42:09,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:42:09,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:42:09,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:42:09,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:42:08" (1/3) ... [2024-10-14 19:42:09,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158309dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:42:09, skipping insertion in model container [2024-10-14 19:42:09,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:42:08" (2/3) ... [2024-10-14 19:42:09,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158309dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:42:09, skipping insertion in model container [2024-10-14 19:42:09,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:42:09" (3/3) ... [2024-10-14 19:42:09,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_03-priv_inv.i [2024-10-14 19:42:09,269 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:42:09,269 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:42:09,269 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:42:09,299 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 19:42:09,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 32 transitions, 71 flow [2024-10-14 19:42:09,368 INFO L124 PetriNetUnfolderBase]: 3/31 cut-off events. [2024-10-14 19:42:09,369 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 19:42:09,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 31 events. 3/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 20. Up to 2 conditions per place. [2024-10-14 19:42:09,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 32 transitions, 71 flow [2024-10-14 19:42:09,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 30 transitions, 66 flow [2024-10-14 19:42:09,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:42:09,391 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;@398d4a58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:42:09,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 19:42:09,395 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:42:09,395 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-10-14 19:42:09,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:42:09,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:42:09,396 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-14 19:42:09,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-14 19:42:09,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:42:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 218636, now seen corresponding path program 1 times [2024-10-14 19:42:09,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:42:09,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726894913] [2024-10-14 19:42:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:42:09,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:42:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:42:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:42:09,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:42:09,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726894913] [2024-10-14 19:42:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726894913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:42:09,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:42:09,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 19:42:09,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295574666] [2024-10-14 19:42:09,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:42:09,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:42:09,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:42:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:42:09,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:42:09,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-10-14 19:42:09,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:42:09,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:42:09,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-10-14 19:42:09,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:42:09,805 INFO L124 PetriNetUnfolderBase]: 32/119 cut-off events. [2024-10-14 19:42:09,806 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 19:42:09,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 119 events. 32/119 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 461 event pairs, 18 based on Foata normal form. 13/128 useless extension candidates. Maximal degree in co-relation 191. Up to 60 conditions per place. [2024-10-14 19:42:09,810 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 22 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-10-14 19:42:09,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 133 flow [2024-10-14 19:42:09,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:42:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:42:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-10-14 19:42:09,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-10-14 19:42:09,824 INFO L175 Difference]: Start difference. First operand has 31 places, 30 transitions, 66 flow. Second operand 3 states and 62 transitions. [2024-10-14 19:42:09,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 133 flow [2024-10-14 19:42:09,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 35 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:42:09,829 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 90 flow [2024-10-14 19:42:09,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-10-14 19:42:09,833 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2024-10-14 19:42:09,833 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 90 flow [2024-10-14 19:42:09,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:42:09,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:42:09,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:42:09,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:42:09,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-14 19:42:09,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:42:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1887176608, now seen corresponding path program 1 times [2024-10-14 19:42:09,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:42:09,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012416283] [2024-10-14 19:42:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:42:09,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:42:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:42:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:42:09,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:42:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012416283] [2024-10-14 19:42:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012416283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:42:09,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:42:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:42:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013644197] [2024-10-14 19:42:09,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:42:09,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:42:09,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:42:09,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:42:09,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:42:09,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-10-14 19:42:09,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 90 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) [2024-10-14 19:42:09,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:42:09,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-10-14 19:42:09,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:42:10,031 INFO L124 PetriNetUnfolderBase]: 29/104 cut-off events. [2024-10-14 19:42:10,032 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-10-14 19:42:10,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 104 events. 29/104 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 360 event pairs, 19 based on Foata normal form. 8/110 useless extension candidates. Maximal degree in co-relation 59. Up to 60 conditions per place. [2024-10-14 19:42:10,033 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 21 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2024-10-14 19:42:10,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 148 flow [2024-10-14 19:42:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:42:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:42:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-10-14 19:42:10,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-14 19:42:10,037 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 90 flow. Second operand 3 states and 60 transitions. [2024-10-14 19:42:10,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 148 flow [2024-10-14 19:42:10,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:42:10,039 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 102 flow [2024-10-14 19:42:10,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=29} [2024-10-14 19:42:10,042 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2024-10-14 19:42:10,042 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 102 flow [2024-10-14 19:42:10,042 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) [2024-10-14 19:42:10,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:42:10,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:42:10,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:42:10,043 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-14 19:42:10,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:42:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1189265687, now seen corresponding path program 1 times [2024-10-14 19:42:10,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:42:10,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189179902] [2024-10-14 19:42:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:42:10,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:42:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:42:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:42:10,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:42:10,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189179902] [2024-10-14 19:42:10,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189179902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:42:10,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:42:10,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:42:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754342418] [2024-10-14 19:42:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:42:10,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:42:10,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:42:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:42:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:42:10,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-10-14 19:42:10,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:42:10,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:42:10,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-10-14 19:42:10,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:42:10,297 INFO L124 PetriNetUnfolderBase]: 10/52 cut-off events. [2024-10-14 19:42:10,298 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-14 19:42:10,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 52 events. 10/52 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 4 based on Foata normal form. 6/57 useless extension candidates. Maximal degree in co-relation 51. Up to 17 conditions per place. [2024-10-14 19:42:10,300 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 11 selfloop transitions, 7 changer transitions 0/24 dead transitions. [2024-10-14 19:42:10,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 106 flow [2024-10-14 19:42:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:42:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:42:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 71 transitions. [2024-10-14 19:42:10,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44375 [2024-10-14 19:42:10,303 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 102 flow. Second operand 5 states and 71 transitions. [2024-10-14 19:42:10,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 106 flow [2024-10-14 19:42:10,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 86 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-14 19:42:10,304 INFO L231 Difference]: Finished difference. Result has 27 places, 21 transitions, 58 flow [2024-10-14 19:42:10,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=27, PETRI_TRANSITIONS=21} [2024-10-14 19:42:10,306 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2024-10-14 19:42:10,306 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 21 transitions, 58 flow [2024-10-14 19:42:10,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:42:10,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:42:10,306 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:42:10,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:42:10,307 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-14 19:42:10,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:42:10,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1591171861, now seen corresponding path program 1 times [2024-10-14 19:42:10,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:42:10,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848542618] [2024-10-14 19:42:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:42:10,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:42:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:42:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:42:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:42:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848542618] [2024-10-14 19:42:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848542618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:42:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:42:10,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:42:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644847562] [2024-10-14 19:42:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:42:10,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:42:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:42:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:42:10,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:42:10,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 32 [2024-10-14 19:42:10,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2024-10-14 19:42:10,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:42:10,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 32 [2024-10-14 19:42:10,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:42:10,423 INFO L124 PetriNetUnfolderBase]: 7/46 cut-off events. [2024-10-14 19:42:10,424 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 19:42:10,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 46 events. 7/46 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 7 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 10. Up to 28 conditions per place. [2024-10-14 19:42:10,424 INFO L140 encePairwiseOnDemand]: 30/32 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-10-14 19:42:10,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 78 flow [2024-10-14 19:42:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:42:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:42:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-10-14 19:42:10,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.59375 [2024-10-14 19:42:10,425 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 58 flow. Second operand 3 states and 57 transitions. [2024-10-14 19:42:10,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 78 flow [2024-10-14 19:42:10,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 69 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 19:42:10,426 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2024-10-14 19:42:10,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2024-10-14 19:42:10,427 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2024-10-14 19:42:10,427 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2024-10-14 19:42:10,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2024-10-14 19:42:10,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-14 19:42:10,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-14 19:42:10,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-10-14 19:42:10,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-14 19:42:10,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:42:10,434 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 19:42:10,439 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:42:10,440 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:42:10,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:42:10 BasicIcfg [2024-10-14 19:42:10,446 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:42:10,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:42:10,447 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:42:10,448 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:42:10,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:42:09" (3/4) ... [2024-10-14 19:42:10,450 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:42:10,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-14 19:42:10,457 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2024-10-14 19:42:10,458 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-14 19:42:10,458 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-14 19:42:10,459 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-14 19:42:10,459 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 19:42:10,459 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 19:42:10,552 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:42:10,553 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:42:10,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:42:10,553 INFO L158 Benchmark]: Toolchain (without parser) took 2421.83ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 90.1MB in the beginning and 121.3MB in the end (delta: -31.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,553 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:42:10,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.96ms. Allocated memory is still 163.6MB. Free memory was 90.1MB in the beginning and 69.1MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.24ms. Allocated memory is still 163.6MB. Free memory was 69.1MB in the beginning and 67.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,554 INFO L158 Benchmark]: Boogie Preprocessor took 50.47ms. Allocated memory is still 163.6MB. Free memory was 67.1MB in the beginning and 65.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,555 INFO L158 Benchmark]: RCFGBuilder took 548.98ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 65.0MB in the beginning and 163.9MB in the end (delta: -98.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,555 INFO L158 Benchmark]: TraceAbstraction took 1205.44ms. Allocated memory is still 216.0MB. Free memory was 162.8MB in the beginning and 125.5MB in the end (delta: 37.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,557 INFO L158 Benchmark]: Witness Printer took 105.86ms. Allocated memory is still 216.0MB. Free memory was 125.5MB in the beginning and 121.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:42:10,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.96ms. Allocated memory is still 163.6MB. Free memory was 90.1MB in the beginning and 69.1MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.24ms. Allocated memory is still 163.6MB. Free memory was 69.1MB in the beginning and 67.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.47ms. Allocated memory is still 163.6MB. Free memory was 67.1MB in the beginning and 65.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.98ms. Allocated memory was 163.6MB in the beginning and 216.0MB in the end (delta: 52.4MB). Free memory was 65.0MB in the beginning and 163.9MB in the end (delta: -98.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1205.44ms. Allocated memory is still 216.0MB. Free memory was 162.8MB in the beginning and 125.5MB in the end (delta: 37.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Witness Printer took 105.86ms. Allocated memory is still 216.0MB. Free memory was 125.5MB in the beginning and 121.3MB 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: 704]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 708]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 702]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 41 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 14 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 19:42:10,584 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