./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.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 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:26:43,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:26:43,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:26:43,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:26:43,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:26:43,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:26:43,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:26:43,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:26:43,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:26:43,627 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:26:43,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:26:43,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:26:43,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:26:43,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:26:43,629 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:26:43,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:26:43,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:26:43,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:26:43,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:26:43,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:26:43,632 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:26:43,633 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:26:43,633 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:26:43,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:26:43,633 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:26:43,634 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:26:43,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:26:43,634 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:26:43,634 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:26:43,634 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:26:43,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:26:43,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:26:43,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:26:43,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:26:43,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:26:43,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:26:43,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:26:43,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:26:43,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:26:43,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:26:43,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:26:43,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:26:43,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2024-11-17 03:26:43,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:26:43,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:26:43,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:26:43,924 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:26:43,925 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:26:43,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2024-11-17 03:26:45,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:26:45,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:26:45,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2024-11-17 03:26:45,564 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a4aa145/795c2ad4fd674213bc26a2210cb21789/FLAG210e7606d [2024-11-17 03:26:45,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a4aa145/795c2ad4fd674213bc26a2210cb21789 [2024-11-17 03:26:45,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:26:45,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:26:45,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:26:45,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:26:45,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:26:45,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:26:45" (1/1) ... [2024-11-17 03:26:45,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5774e640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:45, skipping insertion in model container [2024-11-17 03:26:45,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:26:45" (1/1) ... [2024-11-17 03:26:45,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:26:45,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:26:46,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:26:46,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:26:46,166 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:26:46,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46 WrapperNode [2024-11-17 03:26:46,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:26:46,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:26:46,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:26:46,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:26:46,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,247 INFO L138 Inliner]: procedures = 163, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 48 [2024-11-17 03:26:46,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:26:46,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:26:46,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:26:46,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:26:46,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,263 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,286 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]. [2024-11-17 03:26:46,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,295 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:26:46,306 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:26:46,306 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:26:46,306 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:26:46,311 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (1/1) ... [2024-11-17 03:26:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:26:46,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:26:46,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:26:46,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:26:46,399 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 03:26:46,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:26:46,399 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 03:26:46,399 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 03:26:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:26:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:26:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 03:26:46,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:26:46,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:26:46,402 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:26:46,531 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:26:46,535 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:26:46,729 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:26:46,731 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:26:46,858 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:26:46,858 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:26:46,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:26:46 BoogieIcfgContainer [2024-11-17 03:26:46,859 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:26:46,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:26:46,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:26:46,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:26:46,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:26:45" (1/3) ... [2024-11-17 03:26:46,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7241e23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:26:46, skipping insertion in model container [2024-11-17 03:26:46,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:26:46" (2/3) ... [2024-11-17 03:26:46,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7241e23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:26:46, skipping insertion in model container [2024-11-17 03:26:46,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:26:46" (3/3) ... [2024-11-17 03:26:46,870 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2024-11-17 03:26:46,886 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:26:46,886 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-17 03:26:46,887 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:26:46,920 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 03:26:46,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 73 flow [2024-11-17 03:26:46,998 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2024-11-17 03:26:46,999 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 03:26:47,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 32 events. 4/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2024-11-17 03:26:47,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 33 transitions, 73 flow [2024-11-17 03:26:47,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 31 transitions, 68 flow [2024-11-17 03:26:47,018 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:26:47,028 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;@5a0a1d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:26:47,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 03:26:47,035 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:26:47,039 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-17 03:26:47,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:26:47,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:26:47,040 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:26:47,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-17 03:26:47,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:26:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash 5901781, now seen corresponding path program 1 times [2024-11-17 03:26:47,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:26:47,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261679100] [2024-11-17 03:26:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:26:47,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:26:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:26:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:26:47,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:26:47,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261679100] [2024-11-17 03:26:47,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261679100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:26:47,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:26:47,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:26:47,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447866634] [2024-11-17 03:26:47,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:26:47,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:26:47,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:26:47,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:26:47,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:26:47,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-11-17 03:26:47,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:47,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:26:47,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-11-17 03:26:47,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:26:47,486 INFO L124 PetriNetUnfolderBase]: 35/103 cut-off events. [2024-11-17 03:26:47,486 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 03:26:47,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 103 events. 35/103 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 317 event pairs, 30 based on Foata normal form. 11/108 useless extension candidates. Maximal degree in co-relation 178. Up to 76 conditions per place. [2024-11-17 03:26:47,489 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 19 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2024-11-17 03:26:47,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 106 flow [2024-11-17 03:26:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:26:47,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:26:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2024-11-17 03:26:47,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47474747474747475 [2024-11-17 03:26:47,505 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 68 flow. Second operand 3 states and 47 transitions. [2024-11-17 03:26:47,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 106 flow [2024-11-17 03:26:47,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:26:47,512 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 54 flow [2024-11-17 03:26:47,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2024-11-17 03:26:47,518 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-11-17 03:26:47,519 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 54 flow [2024-11-17 03:26:47,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:47,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:26:47,520 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:26:47,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:26:47,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-17 03:26:47,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:26:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1714748437, now seen corresponding path program 1 times [2024-11-17 03:26:47,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:26:47,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918280603] [2024-11-17 03:26:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:26:47,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:26:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:26:47,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:26:47,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:26:47,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918280603] [2024-11-17 03:26:47,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918280603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:26:47,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:26:47,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:26:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160446073] [2024-11-17 03:26:47,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:26:47,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:26:47,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:26:47,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:26:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:26:47,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-11-17 03:26:47,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:47,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:26:47,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-11-17 03:26:47,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:26:47,811 INFO L124 PetriNetUnfolderBase]: 30/84 cut-off events. [2024-11-17 03:26:47,811 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 03:26:47,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 84 events. 30/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 214 event pairs, 20 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 79. Up to 53 conditions per place. [2024-11-17 03:26:47,816 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 18 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2024-11-17 03:26:47,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 102 flow [2024-11-17 03:26:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:26:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:26:47,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2024-11-17 03:26:47,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2024-11-17 03:26:47,820 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 54 flow. Second operand 4 states and 51 transitions. [2024-11-17 03:26:47,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 102 flow [2024-11-17 03:26:47,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:26:47,823 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 48 flow [2024-11-17 03:26:47,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2024-11-17 03:26:47,824 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2024-11-17 03:26:47,824 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 48 flow [2024-11-17 03:26:47,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:47,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:26:47,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:26:47,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:26:47,825 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-17 03:26:47,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:26:47,826 INFO L85 PathProgramCache]: Analyzing trace with hash 121498696, now seen corresponding path program 1 times [2024-11-17 03:26:47,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:26:47,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895869517] [2024-11-17 03:26:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:26:47,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:26:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:26:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:26:47,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:26:47,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895869517] [2024-11-17 03:26:47,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895869517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:26:47,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:26:47,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:26:47,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400927674] [2024-11-17 03:26:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:26:47,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:26:47,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:26:47,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:26:47,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:26:47,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-11-17 03:26:47,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:47,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:26:47,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-11-17 03:26:47,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:26:48,053 INFO L124 PetriNetUnfolderBase]: 14/56 cut-off events. [2024-11-17 03:26:48,053 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-17 03:26:48,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 56 events. 14/56 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 6 based on Foata normal form. 5/61 useless extension candidates. Maximal degree in co-relation 47. Up to 26 conditions per place. [2024-11-17 03:26:48,054 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 14 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2024-11-17 03:26:48,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 90 flow [2024-11-17 03:26:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:26:48,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:26:48,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2024-11-17 03:26:48,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47474747474747475 [2024-11-17 03:26:48,056 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 48 flow. Second operand 3 states and 47 transitions. [2024-11-17 03:26:48,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 90 flow [2024-11-17 03:26:48,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 03:26:48,057 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 48 flow [2024-11-17 03:26:48,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2024-11-17 03:26:48,058 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2024-11-17 03:26:48,059 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 48 flow [2024-11-17 03:26:48,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:48,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:26:48,059 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:26:48,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:26:48,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-17 03:26:48,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:26:48,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1486578460, now seen corresponding path program 2 times [2024-11-17 03:26:48,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:26:48,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735626997] [2024-11-17 03:26:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:26:48,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:26:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:26:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:26:48,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:26:48,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735626997] [2024-11-17 03:26:48,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735626997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:26:48,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:26:48,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:26:48,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972737094] [2024-11-17 03:26:48,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:26:48,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:26:48,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:26:48,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:26:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:26:48,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-11-17 03:26:48,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:48,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:26:48,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-11-17 03:26:48,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:26:48,170 INFO L124 PetriNetUnfolderBase]: 14/54 cut-off events. [2024-11-17 03:26:48,170 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 03:26:48,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 54 events. 14/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 14 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 16. Up to 48 conditions per place. [2024-11-17 03:26:48,171 INFO L140 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-11-17 03:26:48,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 76 flow [2024-11-17 03:26:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:26:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:26:48,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2024-11-17 03:26:48,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40404040404040403 [2024-11-17 03:26:48,173 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 48 flow. Second operand 3 states and 40 transitions. [2024-11-17 03:26:48,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 76 flow [2024-11-17 03:26:48,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:26:48,175 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-11-17 03:26:48,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-11-17 03:26:48,176 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2024-11-17 03:26:48,176 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-11-17 03:26:48,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:26:48,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-17 03:26:48,181 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-17 03:26:48,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-17 03:26:48,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-17 03:26:48,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:26:48,184 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-17 03:26:48,189 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:26:48,189 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:26:48,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:26:48 BasicIcfg [2024-11-17 03:26:48,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:26:48,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:26:48,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:26:48,196 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:26:48,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:26:46" (3/4) ... [2024-11-17 03:26:48,199 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:26:48,203 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-17 03:26:48,207 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-17 03:26:48,207 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-17 03:26:48,208 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 03:26:48,208 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 03:26:48,305 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:26:48,305 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:26:48,305 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:26:48,306 INFO L158 Benchmark]: Toolchain (without parser) took 2718.05ms. Allocated memory is still 182.5MB. Free memory was 112.9MB in the beginning and 129.8MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:26:48,306 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:26:48,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.54ms. Allocated memory is still 182.5MB. Free memory was 112.7MB in the beginning and 149.7MB in the end (delta: -37.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-11-17 03:26:48,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.83ms. Allocated memory is still 182.5MB. Free memory was 149.7MB in the beginning and 147.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:26:48,307 INFO L158 Benchmark]: Boogie Preprocessor took 56.61ms. Allocated memory is still 182.5MB. Free memory was 147.6MB in the beginning and 145.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:26:48,310 INFO L158 Benchmark]: IcfgBuilder took 553.24ms. Allocated memory is still 182.5MB. Free memory was 145.7MB in the beginning and 124.5MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-17 03:26:48,310 INFO L158 Benchmark]: TraceAbstraction took 1333.50ms. Allocated memory is still 182.5MB. Free memory was 123.6MB in the beginning and 134.0MB in the end (delta: -10.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:26:48,310 INFO L158 Benchmark]: Witness Printer took 109.60ms. Allocated memory is still 182.5MB. Free memory was 134.0MB in the beginning and 129.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:26:48,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.54ms. Allocated memory is still 182.5MB. Free memory was 112.7MB in the beginning and 149.7MB in the end (delta: -37.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.83ms. Allocated memory is still 182.5MB. Free memory was 149.7MB in the beginning and 147.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.61ms. Allocated memory is still 182.5MB. Free memory was 147.6MB in the beginning and 145.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 553.24ms. Allocated memory is still 182.5MB. Free memory was 145.7MB in the beginning and 124.5MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1333.50ms. Allocated memory is still 182.5MB. Free memory was 123.6MB in the beginning and 134.0MB in the end (delta: -10.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.60ms. Allocated memory is still 182.5MB. Free memory was 134.0MB in the beginning and 129.8MB 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: 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: 695]: 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, 37 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: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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! [2024-11-17 03:26:48,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE