./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_46-refine-protected1_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3d12c74598447410478e04695104608e78da2e67734c0b49554aee2f95de0fed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:46:12,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:46:12,497 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:46:12,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:46:12,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:46:12,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:46:12,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:46:12,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:46:12,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:46:12,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:46:12,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:46:12,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:46:12,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:46:12,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:46:12,546 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:46:12,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:46:12,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:46:12,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:46:12,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:46:12,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:46:12,548 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:46:12,552 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:46:12,552 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:46:12,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:46:12,553 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:46:12,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:46:12,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:46:12,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:46:12,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:46:12,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:46:12,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:46:12,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:46:12,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:46:12,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:46:12,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:46:12,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:46:12,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:46:12,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:46:12,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:46:12,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:46:12,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:46:12,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:46:12,558 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d12c74598447410478e04695104608e78da2e67734c0b49554aee2f95de0fed [2024-10-11 19:46:12,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:46:12,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:46:12,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:46:12,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:46:12,817 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:46:12,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i [2024-10-11 19:46:14,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:46:14,456 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:46:14,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i [2024-10-11 19:46:14,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b2765e7cf/1509c7737f494b018e0a8bd9f73d5984/FLAGde7d42097 [2024-10-11 19:46:14,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b2765e7cf/1509c7737f494b018e0a8bd9f73d5984 [2024-10-11 19:46:14,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:46:14,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:46:14,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:46:14,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:46:14,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:46:14,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:46:14" (1/1) ... [2024-10-11 19:46:14,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a9da34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:14, skipping insertion in model container [2024-10-11 19:46:14,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:46:14" (1/1) ... [2024-10-11 19:46:14,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:46:14,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:46:14,985 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:46:15,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:46:15,078 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:46:15,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15 WrapperNode [2024-10-11 19:46:15,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:46:15,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:46:15,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:46:15,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:46:15,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,126 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 55 [2024-10-11 19:46:15,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:46:15,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:46:15,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:46:15,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:46:15,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,157 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-10-11 19:46:15,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:46:15,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:46:15,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:46:15,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:46:15,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (1/1) ... [2024-10-11 19:46:15,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:46:15,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:46:15,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:46:15,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:46:15,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 19:46:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:46:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 19:46:15,248 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 19:46:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:46:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 19:46:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 19:46:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:46:15,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:46:15,250 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:46:15,365 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:46:15,367 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:46:15,489 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:46:15,490 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:46:15,567 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:46:15,568 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:46:15,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:46:15 BoogieIcfgContainer [2024-10-11 19:46:15,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:46:15,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:46:15,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:46:15,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:46:15,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:46:14" (1/3) ... [2024-10-11 19:46:15,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5278d0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:46:15, skipping insertion in model container [2024-10-11 19:46:15,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:46:15" (2/3) ... [2024-10-11 19:46:15,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5278d0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:46:15, skipping insertion in model container [2024-10-11 19:46:15,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:46:15" (3/3) ... [2024-10-11 19:46:15,578 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_46-refine-protected1_true.i [2024-10-11 19:46:15,595 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:46:15,595 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:46:15,595 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:46:15,638 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:46:15,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 33 transitions, 70 flow [2024-10-11 19:46:15,708 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2024-10-11 19:46:15,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:46:15,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 5/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-10-11 19:46:15,711 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 33 transitions, 70 flow [2024-10-11 19:46:15,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 31 transitions, 65 flow [2024-10-11 19:46:15,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:46:15,737 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;@8bb5273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:46:15,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 19:46:15,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:46:15,755 INFO L124 PetriNetUnfolderBase]: 5/23 cut-off events. [2024-10-11 19:46:15,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:46:15,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:46:15,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:46:15,757 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)] === [2024-10-11 19:46:15,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:46:15,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1801003118, now seen corresponding path program 1 times [2024-10-11 19:46:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:46:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407066828] [2024-10-11 19:46:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:46:15,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:46:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:46:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:46:16,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:46:16,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407066828] [2024-10-11 19:46:16,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407066828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:46:16,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:46:16,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:46:16,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717190347] [2024-10-11 19:46:16,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:46:16,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:46:16,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:46:16,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:46:16,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:46:16,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-10-11 19:46:16,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-11 19:46:16,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:46:16,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-10-11 19:46:16,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:46:16,087 INFO L124 PetriNetUnfolderBase]: 10/45 cut-off events. [2024-10-11 19:46:16,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:46:16,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 45 events. 10/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 7 based on Foata normal form. 4/49 useless extension candidates. Maximal degree in co-relation 74. Up to 24 conditions per place. [2024-10-11 19:46:16,089 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 12 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2024-10-11 19:46:16,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 71 flow [2024-10-11 19:46:16,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:46:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:46:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2024-10-11 19:46:16,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47474747474747475 [2024-10-11 19:46:16,127 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 65 flow. Second operand 3 states and 47 transitions. [2024-10-11 19:46:16,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 71 flow [2024-10-11 19:46:16,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:46:16,136 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 44 flow [2024-10-11 19:46:16,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2024-10-11 19:46:16,150 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -6 predicate places. [2024-10-11 19:46:16,151 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 44 flow [2024-10-11 19:46:16,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-10-11 19:46:16,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:46:16,151 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:46:16,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:46:16,152 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)] === [2024-10-11 19:46:16,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:46:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1801024736, now seen corresponding path program 1 times [2024-10-11 19:46:16,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:46:16,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065348086] [2024-10-11 19:46:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:46:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:46:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:46:16,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:46:16,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:46:16,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065348086] [2024-10-11 19:46:16,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065348086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:46:16,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:46:16,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:46:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254128740] [2024-10-11 19:46:16,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:46:16,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:46:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:46:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:46:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:46:16,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-10-11 19:46:16,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2024-10-11 19:46:16,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:46:16,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-10-11 19:46:16,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:46:16,416 INFO L124 PetriNetUnfolderBase]: 10/39 cut-off events. [2024-10-11 19:46:16,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:46:16,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 39 events. 10/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 5 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 70. Up to 18 conditions per place. [2024-10-11 19:46:16,418 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 11 selfloop transitions, 4 changer transitions 0/18 dead transitions. [2024-10-11 19:46:16,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 72 flow [2024-10-11 19:46:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:46:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:46:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2024-10-11 19:46:16,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36363636363636365 [2024-10-11 19:46:16,420 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 44 flow. Second operand 4 states and 48 transitions. [2024-10-11 19:46:16,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 72 flow [2024-10-11 19:46:16,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:46:16,421 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 42 flow [2024-10-11 19:46:16,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2024-10-11 19:46:16,423 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -8 predicate places. [2024-10-11 19:46:16,423 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 42 flow [2024-10-11 19:46:16,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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) [2024-10-11 19:46:16,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:46:16,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:46:16,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:46:16,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-10-11 19:46:16,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:46:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1932754980, now seen corresponding path program 1 times [2024-10-11 19:46:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:46:16,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713108934] [2024-10-11 19:46:16,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:46:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:46:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:46:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:46:16,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:46:16,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713108934] [2024-10-11 19:46:16,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713108934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:46:16,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:46:16,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:46:16,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804563612] [2024-10-11 19:46:16,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:46:16,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:46:16,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:46:16,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:46:16,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:46:16,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-10-11 19:46:16,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-10-11 19:46:16,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:46:16,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-10-11 19:46:16,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:46:16,539 INFO L124 PetriNetUnfolderBase]: 9/36 cut-off events. [2024-10-11 19:46:16,539 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 19:46:16,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 36 events. 9/36 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 9 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 68. Up to 30 conditions per place. [2024-10-11 19:46:16,540 INFO L140 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-10-11 19:46:16,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 15 transitions, 64 flow [2024-10-11 19:46:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:46:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:46:16,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2024-10-11 19:46:16,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40404040404040403 [2024-10-11 19:46:16,542 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 42 flow. Second operand 3 states and 40 transitions. [2024-10-11 19:46:16,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 15 transitions, 64 flow [2024-10-11 19:46:16,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:46:16,543 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-10-11 19:46:16,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, 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=3, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2024-10-11 19:46:16,545 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -10 predicate places. [2024-10-11 19:46:16,545 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-10-11 19:46:16,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-10-11 19:46:16,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-11 19:46:16,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-11 19:46:16,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-10-11 19:46:16,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-11 19:46:16,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:46:16,550 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 19:46:16,553 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:46:16,554 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:46:16,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:46:16 BasicIcfg [2024-10-11 19:46:16,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:46:16,563 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:46:16,563 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:46:16,563 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:46:16,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:46:15" (3/4) ... [2024-10-11 19:46:16,565 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:46:16,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 19:46:16,572 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-10-11 19:46:16,573 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 19:46:16,573 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 19:46:16,573 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:46:16,657 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:46:16,658 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:46:16,658 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:46:16,659 INFO L158 Benchmark]: Toolchain (without parser) took 2159.78ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 58.4MB in the beginning and 110.9MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:46:16,660 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:46:16,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.24ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 58.3MB in the beginning and 138.9MB in the end (delta: -80.5MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-10-11 19:46:16,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.52ms. Allocated memory is still 176.2MB. Free memory was 137.8MB in the beginning and 136.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:46:16,661 INFO L158 Benchmark]: Boogie Preprocessor took 42.10ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 134.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:46:16,663 INFO L158 Benchmark]: RCFGBuilder took 398.96ms. Allocated memory is still 176.2MB. Free memory was 134.7MB in the beginning and 114.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 19:46:16,663 INFO L158 Benchmark]: TraceAbstraction took 990.96ms. Allocated memory is still 176.2MB. Free memory was 113.7MB in the beginning and 115.4MB in the end (delta: -1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:46:16,664 INFO L158 Benchmark]: Witness Printer took 95.26ms. Allocated memory is still 176.2MB. Free memory was 115.4MB in the beginning and 110.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:46:16,665 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.24ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 58.3MB in the beginning and 138.9MB in the end (delta: -80.5MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.52ms. Allocated memory is still 176.2MB. Free memory was 137.8MB in the beginning and 136.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.10ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 134.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.96ms. Allocated memory is still 176.2MB. Free memory was 134.7MB in the beginning and 114.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 990.96ms. Allocated memory is still 176.2MB. Free memory was 113.7MB in the beginning and 115.4MB in the end (delta: -1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 95.26ms. Allocated memory is still 176.2MB. Free memory was 115.4MB in the beginning and 110.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 686]: 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, 32 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 19:46:16,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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