./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_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 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:09:02,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:09:02,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:09:02,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:09:02,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:09:02,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:09:02,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:09:02,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:09:02,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:09:02,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:09:02,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:09:02,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:09:02,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:09:02,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:09:02,213 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:09:02,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:09:02,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:09:02,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:09:02,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:09:02,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:09:02,215 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:09:02,215 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:09:02,216 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:09:02,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:09:02,219 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:09:02,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:09:02,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:09:02,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:09:02,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:09:02,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:09:02,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:09:02,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:09:02,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:09:02,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:09:02,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:09:02,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:09:02,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:09:02,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:09:02,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:09:02,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:09:02,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:09:02,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:09:02,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 [2024-10-24 19:09:02,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:09:02,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:09:02,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:09:02,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:09:02,522 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:09:02,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i [2024-10-24 19:09:03,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:09:04,188 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:09:04,188 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i [2024-10-24 19:09:04,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f697464ac/b122738caa2745b6ba201f0c868a1d77/FLAGd78560066 [2024-10-24 19:09:04,507 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f697464ac/b122738caa2745b6ba201f0c868a1d77 [2024-10-24 19:09:04,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:09:04,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:09:04,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:09:04,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:09:04,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:09:04,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:09:04" (1/1) ... [2024-10-24 19:09:04,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b38c3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:04, skipping insertion in model container [2024-10-24 19:09:04,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:09:04" (1/1) ... [2024-10-24 19:09:04,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:09:04,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:09:04,925 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:09:04,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:09:05,038 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:09:05,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05 WrapperNode [2024-10-24 19:09:05,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:09:05,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:09:05,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:09:05,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:09:05,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,078 INFO L138 Inliner]: procedures = 162, calls = 22, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 91 [2024-10-24 19:09:05,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:09:05,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:09:05,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:09:05,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:09:05,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,104 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-10-24 19:09:05,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:09:05,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:09:05,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:09:05,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:09:05,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (1/1) ... [2024-10-24 19:09:05,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:09:05,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:09:05,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:09:05,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:09:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 19:09:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:09:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 19:09:05,197 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 19:09:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:09:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 19:09:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 19:09:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:09:05,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:09:05,199 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:09:05,317 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:09:05,319 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:09:05,462 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:09:05,462 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:09:05,614 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:09:05,614 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:09:05,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:09:05 BoogieIcfgContainer [2024-10-24 19:09:05,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:09:05,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:09:05,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:09:05,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:09:05,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:09:04" (1/3) ... [2024-10-24 19:09:05,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d998f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:09:05, skipping insertion in model container [2024-10-24 19:09:05,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:09:05" (2/3) ... [2024-10-24 19:09:05,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d998f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:09:05, skipping insertion in model container [2024-10-24 19:09:05,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:09:05" (3/3) ... [2024-10-24 19:09:05,628 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2024-10-24 19:09:05,646 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:09:05,647 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-24 19:09:05,647 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:09:05,679 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 19:09:05,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 49 transitions, 105 flow [2024-10-24 19:09:05,741 INFO L124 PetriNetUnfolderBase]: 8/48 cut-off events. [2024-10-24 19:09:05,741 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 19:09:05,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 48 events. 8/48 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 87 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-10-24 19:09:05,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 49 transitions, 105 flow [2024-10-24 19:09:05,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 47 transitions, 100 flow [2024-10-24 19:09:05,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:09:05,767 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;@37b77ecb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:09:05,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 19:09:05,771 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:09:05,771 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-10-24 19:09:05,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:09:05,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:05,772 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 19:09:05,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:05,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:05,778 INFO L85 PathProgramCache]: Analyzing trace with hash 9710173, now seen corresponding path program 1 times [2024-10-24 19:09:05,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:05,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260527813] [2024-10-24 19:09:05,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:05,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:06,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:06,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260527813] [2024-10-24 19:09:06,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260527813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:06,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:06,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:09:06,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834624686] [2024-10-24 19:09:06,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:06,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:09:06,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:06,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:09:06,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:09:06,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-10-24 19:09:06,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 47 transitions, 100 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) [2024-10-24 19:09:06,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:06,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-10-24 19:09:06,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:06,256 INFO L124 PetriNetUnfolderBase]: 63/197 cut-off events. [2024-10-24 19:09:06,257 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 19:09:06,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 197 events. 63/197 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 885 event pairs, 54 based on Foata normal form. 50/235 useless extension candidates. Maximal degree in co-relation 332. Up to 127 conditions per place. [2024-10-24 19:09:06,260 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 26 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2024-10-24 19:09:06,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 148 flow [2024-10-24 19:09:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:09:06,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:09:06,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-24 19:09:06,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.564625850340136 [2024-10-24 19:09:06,275 INFO L175 Difference]: Start difference. First operand has 43 places, 47 transitions, 100 flow. Second operand 3 states and 83 transitions. [2024-10-24 19:09:06,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 148 flow [2024-10-24 19:09:06,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:09:06,282 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 74 flow [2024-10-24 19:09:06,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2024-10-24 19:09:06,288 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2024-10-24 19:09:06,290 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 74 flow [2024-10-24 19:09:06,291 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) [2024-10-24 19:09:06,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:06,291 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:06,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:09:06,292 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:06,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:06,295 INFO L85 PathProgramCache]: Analyzing trace with hash 167215478, now seen corresponding path program 1 times [2024-10-24 19:09:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:06,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298972169] [2024-10-24 19:09:06,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:06,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:06,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:06,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298972169] [2024-10-24 19:09:06,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298972169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:06,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:06,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:09:06,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909581987] [2024-10-24 19:09:06,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:06,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:09:06,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:06,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:09:06,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:09:06,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-10-24 19:09:06,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:06,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:06,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-10-24 19:09:06,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:06,635 INFO L124 PetriNetUnfolderBase]: 60/184 cut-off events. [2024-10-24 19:09:06,635 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 19:09:06,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 184 events. 60/184 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 754 event pairs, 20 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 205. Up to 75 conditions per place. [2024-10-24 19:09:06,638 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 31 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2024-10-24 19:09:06,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 182 flow [2024-10-24 19:09:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:09:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:09:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2024-10-24 19:09:06,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4530612244897959 [2024-10-24 19:09:06,640 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 74 flow. Second operand 5 states and 111 transitions. [2024-10-24 19:09:06,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 182 flow [2024-10-24 19:09:06,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:09:06,643 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 112 flow [2024-10-24 19:09:06,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-10-24 19:09:06,644 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-10-24 19:09:06,644 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 112 flow [2024-10-24 19:09:06,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:06,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:06,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:06,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:09:06,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:06,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash -126450554, now seen corresponding path program 1 times [2024-10-24 19:09:06,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:06,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175228739] [2024-10-24 19:09:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:06,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175228739] [2024-10-24 19:09:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175228739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:06,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:06,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:09:06,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666913519] [2024-10-24 19:09:06,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:06,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:09:06,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:09:06,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:09:06,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-10-24 19:09:06,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:06,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:06,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-10-24 19:09:06,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:06,865 INFO L124 PetriNetUnfolderBase]: 54/159 cut-off events. [2024-10-24 19:09:06,865 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-10-24 19:09:06,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 159 events. 54/159 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 590 event pairs, 21 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 125. Up to 74 conditions per place. [2024-10-24 19:09:06,867 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 30 selfloop transitions, 7 changer transitions 0/47 dead transitions. [2024-10-24 19:09:06,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 224 flow [2024-10-24 19:09:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:09:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:09:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-10-24 19:09:06,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43673469387755104 [2024-10-24 19:09:06,871 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 112 flow. Second operand 5 states and 107 transitions. [2024-10-24 19:09:06,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 224 flow [2024-10-24 19:09:06,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:09:06,874 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 136 flow [2024-10-24 19:09:06,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-10-24 19:09:06,875 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-10-24 19:09:06,875 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 136 flow [2024-10-24 19:09:06,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:06,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:06,875 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:06,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:09:06,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:06,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:06,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1308302191, now seen corresponding path program 1 times [2024-10-24 19:09:06,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:06,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116842918] [2024-10-24 19:09:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:06,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:06,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:06,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:06,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116842918] [2024-10-24 19:09:06,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116842918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:06,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:06,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:09:06,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747731133] [2024-10-24 19:09:06,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:06,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:09:06,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:06,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:09:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:09:06,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-10-24 19:09:06,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:06,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:06,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-10-24 19:09:06,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:07,027 INFO L124 PetriNetUnfolderBase]: 17/81 cut-off events. [2024-10-24 19:09:07,027 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-24 19:09:07,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 81 events. 17/81 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 202 event pairs, 5 based on Foata normal form. 7/88 useless extension candidates. Maximal degree in co-relation 97. Up to 38 conditions per place. [2024-10-24 19:09:07,028 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 20 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2024-10-24 19:09:07,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 182 flow [2024-10-24 19:09:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:09:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:09:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-10-24 19:09:07,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2024-10-24 19:09:07,031 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 136 flow. Second operand 3 states and 71 transitions. [2024-10-24 19:09:07,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 182 flow [2024-10-24 19:09:07,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 170 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-24 19:09:07,037 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 124 flow [2024-10-24 19:09:07,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2024-10-24 19:09:07,038 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-10-24 19:09:07,038 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 124 flow [2024-10-24 19:09:07,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:07,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:07,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:09:07,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:07,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:07,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1836115240, now seen corresponding path program 1 times [2024-10-24 19:09:07,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:07,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439305105] [2024-10-24 19:09:07,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:07,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:07,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439305105] [2024-10-24 19:09:07,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439305105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:07,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:07,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:09:07,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132443698] [2024-10-24 19:09:07,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:07,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:09:07,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:07,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:09:07,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:09:07,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-10-24 19:09:07,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:07,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-10-24 19:09:07,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:07,254 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-10-24 19:09:07,254 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-24 19:09:07,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 79 events. 19/79 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 167 event pairs, 9 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 108. Up to 28 conditions per place. [2024-10-24 19:09:07,256 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 22 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2024-10-24 19:09:07,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 197 flow [2024-10-24 19:09:07,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:09:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:09:07,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-10-24 19:09:07,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-10-24 19:09:07,259 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 124 flow. Second operand 6 states and 112 transitions. [2024-10-24 19:09:07,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 197 flow [2024-10-24 19:09:07,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:09:07,264 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 137 flow [2024-10-24 19:09:07,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2024-10-24 19:09:07,265 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-10-24 19:09:07,265 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 137 flow [2024-10-24 19:09:07,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:07,265 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:07,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:09:07,267 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:07,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash 123696908, now seen corresponding path program 1 times [2024-10-24 19:09:07,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154937617] [2024-10-24 19:09:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:07,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154937617] [2024-10-24 19:09:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154937617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:09:07,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055004362] [2024-10-24 19:09:07,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:07,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:09:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:09:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:09:07,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 49 [2024-10-24 19:09:07,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:07,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 49 [2024-10-24 19:09:07,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:07,503 INFO L124 PetriNetUnfolderBase]: 17/78 cut-off events. [2024-10-24 19:09:07,503 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-10-24 19:09:07,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 78 events. 17/78 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 4 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 110. Up to 15 conditions per place. [2024-10-24 19:09:07,504 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 27 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2024-10-24 19:09:07,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 236 flow [2024-10-24 19:09:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:09:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:09:07,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2024-10-24 19:09:07,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38010204081632654 [2024-10-24 19:09:07,508 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 137 flow. Second operand 8 states and 149 transitions. [2024-10-24 19:09:07,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 236 flow [2024-10-24 19:09:07,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 216 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 19:09:07,512 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 138 flow [2024-10-24 19:09:07,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=138, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2024-10-24 19:09:07,513 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-10-24 19:09:07,514 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 138 flow [2024-10-24 19:09:07,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:09:07,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:07,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:09:07,515 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:09:07,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:09:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1905249911, now seen corresponding path program 1 times [2024-10-24 19:09:07,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:09:07,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835412920] [2024-10-24 19:09:07,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:09:07,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:09:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:09:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:09:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:09:07,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835412920] [2024-10-24 19:09:07,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835412920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:09:07,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:09:07,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:09:07,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049809878] [2024-10-24 19:09:07,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:09:07,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:09:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:09:07,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:09:07,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:09:07,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-10-24 19:09:07,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:09:07,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-10-24 19:09:07,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:09:07,593 INFO L124 PetriNetUnfolderBase]: 15/74 cut-off events. [2024-10-24 19:09:07,594 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-24 19:09:07,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 74 events. 15/74 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 15 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 110. Up to 57 conditions per place. [2024-10-24 19:09:07,594 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-10-24 19:09:07,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 29 transitions, 178 flow [2024-10-24 19:09:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:09:07,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:09:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-10-24 19:09:07,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4217687074829932 [2024-10-24 19:09:07,596 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 138 flow. Second operand 3 states and 62 transitions. [2024-10-24 19:09:07,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 29 transitions, 178 flow [2024-10-24 19:09:07,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 160 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-24 19:09:07,597 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-10-24 19:09:07,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-10-24 19:09:07,598 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-10-24 19:09:07,598 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-10-24 19:09:07,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:09:07,604 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-10-24 19:09:07,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-10-24 19:09:07,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-10-24 19:09:07,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-10-24 19:09:07,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2024-10-24 19:09:07,606 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2024-10-24 19:09:07,606 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-10-24 19:09:07,606 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-10-24 19:09:07,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:09:07,606 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:09:07,612 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:09:07,613 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:09:07,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:09:07 BasicIcfg [2024-10-24 19:09:07,620 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:09:07,621 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:09:07,621 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:09:07,621 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:09:07,621 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:09:05" (3/4) ... [2024-10-24 19:09:07,623 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:09:07,626 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 19:09:07,630 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-10-24 19:09:07,631 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-10-24 19:09:07,632 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 19:09:07,632 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 19:09:07,712 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:09:07,715 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:09:07,715 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:09:07,716 INFO L158 Benchmark]: Toolchain (without parser) took 3205.64ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 86.9MB in the beginning and 101.1MB in the end (delta: -14.2MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,716 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 142.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:09:07,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.63ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 86.7MB in the beginning and 149.7MB in the end (delta: -63.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.20ms. Allocated memory is still 184.5MB. Free memory was 149.7MB in the beginning and 147.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,717 INFO L158 Benchmark]: Boogie Preprocessor took 38.34ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 145.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,717 INFO L158 Benchmark]: RCFGBuilder took 496.51ms. Allocated memory is still 184.5MB. Free memory was 145.6MB in the beginning and 118.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,717 INFO L158 Benchmark]: TraceAbstraction took 2001.08ms. Allocated memory is still 184.5MB. Free memory was 117.3MB in the beginning and 105.3MB in the end (delta: 12.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,717 INFO L158 Benchmark]: Witness Printer took 94.46ms. Allocated memory is still 184.5MB. Free memory was 105.3MB in the beginning and 101.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:09:07,719 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 142.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.63ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 86.7MB in the beginning and 149.7MB in the end (delta: -63.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.20ms. Allocated memory is still 184.5MB. Free memory was 149.7MB in the beginning and 147.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.34ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 145.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.51ms. Allocated memory is still 184.5MB. Free memory was 145.6MB in the beginning and 118.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2001.08ms. Allocated memory is still 184.5MB. Free memory was 117.3MB in the beginning and 105.3MB in the end (delta: 12.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 94.46ms. Allocated memory is still 184.5MB. Free memory was 105.3MB in the beginning and 101.1MB 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 - 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 61 locations, 8 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: 1.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 376 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 1 mSDtfsCounter, 376 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=6, InterpolantAutomatonStates: 33, 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, 0.7s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 19:09:07,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE