./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 8be7027f 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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:16:59,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:16:59,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:16:59,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:16:59,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:16:59,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:16:59,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:16:59,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:16:59,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:16:59,607 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:16:59,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:16:59,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:16:59,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:16:59,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:16:59,611 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:16:59,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:16:59,611 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:16:59,611 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:16:59,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:16:59,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:16:59,612 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:16:59,612 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:16:59,612 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:16:59,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:16:59,613 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:16:59,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:16:59,613 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:16:59,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:16:59,614 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:16:59,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:16:59,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:16:59,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:16:59,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:16:59,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:16:59,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:16:59,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:16:59,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:16:59,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:16:59,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:16:59,615 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:16:59,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:16:59,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:16:59,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2024-11-12 16:16:59,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:16:59,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:16:59,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:16:59,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:16:59,826 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:16:59,828 INFO L431 ainManager$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 [2024-11-12 16:17:01,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:17:01,211 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:17:01,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2024-11-12 16:17:01,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bfcf90c/05a980147c164c14abde322b517c8e70/FLAG0167a7d83 [2024-11-12 16:17:01,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5bfcf90c/05a980147c164c14abde322b517c8e70 [2024-11-12 16:17:01,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:17:01,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:17:01,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:17:01,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:17:01,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:17:01,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b7986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01, skipping insertion in model container [2024-11-12 16:17:01,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:17:01,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:17:01,528 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:17:01,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:17:01,599 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:17:01,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01 WrapperNode [2024-11-12 16:17:01,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:17:01,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:17:01,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:17:01,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:17:01,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,635 INFO L138 Inliner]: procedures = 163, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 48 [2024-11-12 16:17:01,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:17:01,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:17:01,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:17:01,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:17:01,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,661 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]. [2024-11-12 16:17:01,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:17:01,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:17:01,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:17:01,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:17:01,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (1/1) ... [2024-11-12 16:17:01,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:17:01,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:17:01,703 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) [2024-11-12 16:17:01,705 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 [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 16:17:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 16:17:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:17:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:17:01,737 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:17:01,827 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:17:01,829 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:17:01,956 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:17:01,956 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:17:02,090 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:17:02,093 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:17:02,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:17:02 BoogieIcfgContainer [2024-11-12 16:17:02,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:17:02,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:17:02,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:17:02,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:17:02,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:17:01" (1/3) ... [2024-11-12 16:17:02,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c026ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:17:02, skipping insertion in model container [2024-11-12 16:17:02,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:17:01" (2/3) ... [2024-11-12 16:17:02,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c026ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:17:02, skipping insertion in model container [2024-11-12 16:17:02,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:17:02" (3/3) ... [2024-11-12 16:17:02,103 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2024-11-12 16:17:02,114 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:17:02,114 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-12 16:17:02,114 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:17:02,135 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 16:17:02,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 73 flow [2024-11-12 16:17:02,174 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2024-11-12 16:17:02,174 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 16:17:02,176 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 38 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. [2024-11-12 16:17:02,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 33 transitions, 73 flow [2024-11-12 16:17:02,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 31 transitions, 68 flow [2024-11-12 16:17:02,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:17:02,189 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;@4d30d445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:17:02,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-12 16:17:02,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:17:02,195 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-12 16:17:02,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:17:02,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:17:02,196 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-12 16:17:02,198 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)] === [2024-11-12 16:17:02,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:17:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash 6971705, now seen corresponding path program 1 times [2024-11-12 16:17:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:17:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009262246] [2024-11-12 16:17:02,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:17:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:17:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:17:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:17:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:17:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009262246] [2024-11-12 16:17:02,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009262246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:17:02,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:17:02,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:17:02,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648835654] [2024-11-12 16:17:02,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:17:02,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:17:02,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:17:02,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:17:02,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:17:02,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-11-12 16:17:02,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-12 16:17:02,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:17:02,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-11-12 16:17:02,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:17:02,521 INFO L124 PetriNetUnfolderBase]: 35/105 cut-off events. [2024-11-12 16:17:02,521 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 16:17:02,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 105 events. 35/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 324 event pairs, 30 based on Foata normal form. 11/110 useless extension candidates. Maximal degree in co-relation 180. Up to 75 conditions per place. [2024-11-12 16:17:02,523 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 18 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2024-11-12 16:17:02,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 104 flow [2024-11-12 16:17:02,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:17:02,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:17:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-11-12 16:17:02,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2024-11-12 16:17:02,534 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 68 flow. Second operand 3 states and 49 transitions. [2024-11-12 16:17:02,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 104 flow [2024-11-12 16:17:02,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:17:02,537 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 54 flow [2024-11-12 16:17:02,539 INFO L262 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} [2024-11-12 16:17:02,542 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-11-12 16:17:02,542 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 54 flow [2024-11-12 16:17:02,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-12 16:17:02,542 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:17:02,542 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:17:02,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:17:02,543 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)] === [2024-11-12 16:17:02,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:17:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash 143622149, now seen corresponding path program 1 times [2024-11-12 16:17:02,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:17:02,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823073163] [2024-11-12 16:17:02,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:17:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:17:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:17:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:17:02,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:17:02,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823073163] [2024-11-12 16:17:02,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823073163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:17:02,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:17:02,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:17:02,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274605298] [2024-11-12 16:17:02,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:17:02,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:17:02,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:17:02,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:17:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:17:02,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-11-12 16:17:02,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-12 16:17:02,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:17:02,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-11-12 16:17:02,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:17:02,744 INFO L124 PetriNetUnfolderBase]: 30/84 cut-off events. [2024-11-12 16:17:02,744 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 16:17:02,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 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 202 event pairs, 20 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 79. Up to 52 conditions per place. [2024-11-12 16:17:02,745 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2024-11-12 16:17:02,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 100 flow [2024-11-12 16:17:02,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:17:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:17:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2024-11-12 16:17:02,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2024-11-12 16:17:02,748 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 54 flow. Second operand 4 states and 54 transitions. [2024-11-12 16:17:02,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 100 flow [2024-11-12 16:17:02,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:17:02,749 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 48 flow [2024-11-12 16:17:02,749 INFO L262 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} [2024-11-12 16:17:02,750 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2024-11-12 16:17:02,750 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 48 flow [2024-11-12 16:17:02,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-12 16:17:02,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:17:02,750 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:17:02,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:17:02,750 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)] === [2024-11-12 16:17:02,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:17:02,751 INFO L85 PathProgramCache]: Analyzing trace with hash -29568860, now seen corresponding path program 1 times [2024-11-12 16:17:02,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:17:02,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765144584] [2024-11-12 16:17:02,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:17:02,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:17:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:17:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:17:02,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:17:02,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765144584] [2024-11-12 16:17:02,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765144584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:17:02,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:17:02,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:17:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106380155] [2024-11-12 16:17:02,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:17:02,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:17:02,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:17:02,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:17:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:17:02,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-12 16:17:02,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-12 16:17:02,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:17:02,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-12 16:17:02,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:17:02,877 INFO L124 PetriNetUnfolderBase]: 14/57 cut-off events. [2024-11-12 16:17:02,877 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-12 16:17:02,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 57 events. 14/57 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 6 based on Foata normal form. 5/62 useless extension candidates. Maximal degree in co-relation 47. Up to 26 conditions per place. [2024-11-12 16:17:02,878 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 13 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2024-11-12 16:17:02,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 88 flow [2024-11-12 16:17:02,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:17:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:17:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-11-12 16:17:02,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2024-11-12 16:17:02,880 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 48 flow. Second operand 3 states and 49 transitions. [2024-11-12 16:17:02,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 88 flow [2024-11-12 16:17:02,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 22 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 16:17:02,881 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 48 flow [2024-11-12 16:17:02,881 INFO L262 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} [2024-11-12 16:17:02,882 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2024-11-12 16:17:02,882 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 48 flow [2024-11-12 16:17:02,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-12 16:17:02,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:17:02,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:17:02,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:17:02,883 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-12 16:17:02,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:17:02,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1014554086, now seen corresponding path program 2 times [2024-11-12 16:17:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:17:02,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168650499] [2024-11-12 16:17:02,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:17:02,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:17:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:17:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:17:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:17:02,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168650499] [2024-11-12 16:17:02,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168650499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:17:02,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:17:02,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:17:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573934198] [2024-11-12 16:17:02,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:17:02,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:17:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:17:02,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:17:02,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:17:02,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-11-12 16:17:02,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 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) [2024-11-12 16:17:02,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:17:02,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-11-12 16:17:02,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:17:02,958 INFO L124 PetriNetUnfolderBase]: 14/56 cut-off events. [2024-11-12 16:17:02,959 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 16:17:02,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 56 events. 14/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 14 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 16. Up to 47 conditions per place. [2024-11-12 16:17:02,959 INFO L140 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-11-12 16:17:02,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 74 flow [2024-11-12 16:17:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:17:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:17:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-12 16:17:02,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2024-11-12 16:17:02,960 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 48 flow. Second operand 3 states and 42 transitions. [2024-11-12 16:17:02,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 74 flow [2024-11-12 16:17:02,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:17:02,961 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-11-12 16:17:02,961 INFO L262 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} [2024-11-12 16:17:02,961 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2024-11-12 16:17:02,962 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-11-12 16:17:02,962 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) [2024-11-12 16:17:02,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-12 16:17:02,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-12 16:17:02,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-12 16:17:02,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-12 16:17:02,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:17:02,968 INFO L421 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-12 16:17:02,971 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:17:02,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:17:02,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:17:02 BasicIcfg [2024-11-12 16:17:02,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:17:02,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:17:02,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:17:02,979 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:17:02,980 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:17:02" (3/4) ... [2024-11-12 16:17:02,981 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:17:02,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-12 16:17:02,991 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-12 16:17:02,991 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-12 16:17:02,991 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 16:17:02,991 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 16:17:03,062 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:17:03,063 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:17:03,063 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:17:03,063 INFO L158 Benchmark]: Toolchain (without parser) took 1825.99ms. Allocated memory is still 176.2MB. Free memory was 105.9MB in the beginning and 138.2MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:17:03,063 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:17:03,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.27ms. Allocated memory is still 176.2MB. Free memory was 105.9MB in the beginning and 84.0MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 16:17:03,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.84ms. Allocated memory is still 176.2MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:17:03,064 INFO L158 Benchmark]: Boogie Preprocessor took 37.18ms. Allocated memory is still 176.2MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:17:03,064 INFO L158 Benchmark]: RCFGBuilder took 420.86ms. Allocated memory is still 176.2MB. Free memory was 80.3MB in the beginning and 141.7MB in the end (delta: -61.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-12 16:17:03,064 INFO L158 Benchmark]: TraceAbstraction took 880.67ms. Allocated memory is still 176.2MB. Free memory was 140.7MB in the beginning and 142.2MB in the end (delta: -1.5MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2024-11-12 16:17:03,064 INFO L158 Benchmark]: Witness Printer took 85.01ms. Allocated memory is still 176.2MB. Free memory was 142.2MB in the beginning and 138.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:17:03,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.27ms. Allocated memory is still 176.2MB. Free memory was 105.9MB in the beginning and 84.0MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.84ms. Allocated memory is still 176.2MB. Free memory was 84.0MB in the beginning and 82.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.18ms. Allocated memory is still 176.2MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.86ms. Allocated memory is still 176.2MB. Free memory was 80.3MB in the beginning and 141.7MB in the end (delta: -61.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 880.67ms. Allocated memory is still 176.2MB. Free memory was 140.7MB in the beginning and 142.2MB in the end (delta: -1.5MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. * Witness Printer took 85.01ms. Allocated memory is still 176.2MB. Free memory was 142.2MB in the beginning and 138.2MB in the end (delta: 4.1MB). 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 123 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, 0.0s SatisfiabilityAnalysisTime, 0.3s 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! [2024-11-12 16:17:03,089 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