./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc 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/06-symbeq_11-equ_nr.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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:37:47,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:37:47,612 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:37:47,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:37:47,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:37:47,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:37:47,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:37:47,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:37:47,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:37:47,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:37:47,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:37:47,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:37:47,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:37:47,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:37:47,657 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:37:47,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:37:47,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:37:47,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:37:47,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:37:47,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:37:47,658 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:37:47,662 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:37:47,662 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:37:47,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:37:47,663 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:37:47,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:37:47,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:37:47,663 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:37:47,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:37:47,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:37:47,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:37:47,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:37:47,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:37:47,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:37:47,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:37:47,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:37:47,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:37:47,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:37:47,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:37:47,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:37:47,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:37:47,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:37:47,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2024-11-19 09:37:47,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:37:47,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:37:47,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:37:47,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:37:47,953 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:37:47,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2024-11-19 09:37:49,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:37:49,671 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:37:49,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2024-11-19 09:37:49,691 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630cadcd0/d7a77cd0c15c445292f610a23ab3e22f/FLAG40e0c2bf1 [2024-11-19 09:37:49,967 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630cadcd0/d7a77cd0c15c445292f610a23ab3e22f [2024-11-19 09:37:49,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:37:49,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:37:49,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:37:49,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:37:49,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:37:49,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:49" (1/1) ... [2024-11-19 09:37:49,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ea7dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:49, skipping insertion in model container [2024-11-19 09:37:49,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:37:49" (1/1) ... [2024-11-19 09:37:50,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:37:50,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:37:50,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:37:50,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:37:50,612 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:37:50,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50 WrapperNode [2024-11-19 09:37:50,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:37:50,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:37:50,615 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:37:50,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:37:50,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,661 INFO L138 Inliner]: procedures = 265, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2024-11-19 09:37:50,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:37:50,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:37:50,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:37:50,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:37:50,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,675 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,686 INFO L175 MemorySlicer]: Split 18 memory accesses to 1 slices as follows [18]. 100 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [16]. The 2 writes are split as follows [2]. [2024-11-19 09:37:50,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:37:50,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:37:50,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:37:50,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:37:50,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (1/1) ... [2024-11-19 09:37:50,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:37:50,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:37:50,743 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) [2024-11-19 09:37:50,745 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 [2024-11-19 09:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 09:37:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 09:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 09:37:50,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 09:37:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 09:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:37:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:37:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:37:50,814 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:37:50,943 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:37:50,945 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:37:51,101 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:37:51,102 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:37:51,278 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:37:51,279 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:37:51,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:51 BoogieIcfgContainer [2024-11-19 09:37:51,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:37:51,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:37:51,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:37:51,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:37:51,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:37:49" (1/3) ... [2024-11-19 09:37:51,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6419b2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:51, skipping insertion in model container [2024-11-19 09:37:51,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:37:50" (2/3) ... [2024-11-19 09:37:51,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6419b2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:37:51, skipping insertion in model container [2024-11-19 09:37:51,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:51" (3/3) ... [2024-11-19 09:37:51,308 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2024-11-19 09:37:51,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:37:51,327 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-19 09:37:51,327 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:37:51,380 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:37:51,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 23 transitions, 50 flow [2024-11-19 09:37:51,445 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-19 09:37:51,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:51,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 42 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-19 09:37:51,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 23 transitions, 50 flow [2024-11-19 09:37:51,451 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 22 transitions, 47 flow [2024-11-19 09:37:51,465 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:37:51,473 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;@43ef2b39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:37:51,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-19 09:37:51,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:37:51,479 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 09:37:51,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:51,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:51,480 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 09:37:51,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-11-19 09:37:51,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash 206444, now seen corresponding path program 1 times [2024-11-19 09:37:51,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:51,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8023363] [2024-11-19 09:37:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:51,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8023363] [2024-11-19 09:37:51,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8023363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:51,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:51,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:51,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120608765] [2024-11-19 09:37:51,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:51,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:51,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:51,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:51,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 23 [2024-11-19 09:37:51,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-19 09:37:51,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:51,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 23 [2024-11-19 09:37:51,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:51,867 INFO L124 PetriNetUnfolderBase]: 15/60 cut-off events. [2024-11-19 09:37:51,868 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:51,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 60 events. 15/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 182 event pairs, 15 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 93. Up to 43 conditions per place. [2024-11-19 09:37:51,871 INFO L140 encePairwiseOnDemand]: 21/23 looper letters, 10 selfloop transitions, 1 changer transitions 1/21 dead transitions. [2024-11-19 09:37:51,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 21 transitions, 69 flow [2024-11-19 09:37:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-19 09:37:51,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6231884057971014 [2024-11-19 09:37:51,882 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 47 flow. Second operand 3 states and 43 transitions. [2024-11-19 09:37:51,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 21 transitions, 69 flow [2024-11-19 09:37:51,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:51,886 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 44 flow [2024-11-19 09:37:51,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2024-11-19 09:37:51,894 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-19 09:37:51,894 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 44 flow [2024-11-19 09:37:51,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-19 09:37:51,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:51,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:51,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:37:51,896 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-11-19 09:37:51,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:51,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1733298022, now seen corresponding path program 1 times [2024-11-19 09:37:51,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:51,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264814029] [2024-11-19 09:37:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:52,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:52,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264814029] [2024-11-19 09:37:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264814029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:52,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:52,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:52,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040371239] [2024-11-19 09:37:52,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:52,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:52,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:52,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:52,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:52,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 23 [2024-11-19 09:37:52,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 09:37:52,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:52,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 23 [2024-11-19 09:37:52,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:52,137 INFO L124 PetriNetUnfolderBase]: 15/57 cut-off events. [2024-11-19 09:37:52,137 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:52,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 57 events. 15/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 167 event pairs, 15 based on Foata normal form. 5/52 useless extension candidates. Maximal degree in co-relation 98. Up to 41 conditions per place. [2024-11-19 09:37:52,138 INFO L140 encePairwiseOnDemand]: 21/23 looper letters, 10 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2024-11-19 09:37:52,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 64 flow [2024-11-19 09:37:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-19 09:37:52,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2024-11-19 09:37:52,140 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 44 flow. Second operand 3 states and 42 transitions. [2024-11-19 09:37:52,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 64 flow [2024-11-19 09:37:52,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 63 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:52,142 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 43 flow [2024-11-19 09:37:52,142 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-11-19 09:37:52,143 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-19 09:37:52,143 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 43 flow [2024-11-19 09:37:52,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 09:37:52,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:52,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:52,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:37:52,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-11-19 09:37:52,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1733298023, now seen corresponding path program 1 times [2024-11-19 09:37:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514658105] [2024-11-19 09:37:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:52,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:52,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:52,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514658105] [2024-11-19 09:37:52,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514658105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:52,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:52,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:37:52,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744393251] [2024-11-19 09:37:52,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:52,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:37:52,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:52,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:37:52,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:37:52,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 23 [2024-11-19 09:37:52,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 09:37:52,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:52,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 23 [2024-11-19 09:37:52,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:52,372 INFO L124 PetriNetUnfolderBase]: 15/56 cut-off events. [2024-11-19 09:37:52,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:52,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 56 events. 15/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 161 event pairs, 15 based on Foata normal form. 5/52 useless extension candidates. Maximal degree in co-relation 97. Up to 41 conditions per place. [2024-11-19 09:37:52,373 INFO L140 encePairwiseOnDemand]: 21/23 looper letters, 7 selfloop transitions, 1 changer transitions 3/18 dead transitions. [2024-11-19 09:37:52,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 63 flow [2024-11-19 09:37:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:37:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:37:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-19 09:37:52,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2024-11-19 09:37:52,376 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 43 flow. Second operand 3 states and 42 transitions. [2024-11-19 09:37:52,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 63 flow [2024-11-19 09:37:52,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:52,377 INFO L231 Difference]: Finished difference. Result has 25 places, 15 transitions, 36 flow [2024-11-19 09:37:52,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=25, PETRI_TRANSITIONS=15} [2024-11-19 09:37:52,378 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-19 09:37:52,378 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 15 transitions, 36 flow [2024-11-19 09:37:52,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 09:37:52,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:52,380 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:52,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:37:52,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-11-19 09:37:52,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:52,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1732769735, now seen corresponding path program 1 times [2024-11-19 09:37:52,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:52,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718016662] [2024-11-19 09:37:52,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:52,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:52,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:52,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:52,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718016662] [2024-11-19 09:37:52,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718016662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:52,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:52,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:52,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831065494] [2024-11-19 09:37:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:52,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:37:52,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:37:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:37:52,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-19 09:37:52,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 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) [2024-11-19 09:37:52,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:52,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-19 09:37:52,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:52,630 INFO L124 PetriNetUnfolderBase]: 6/32 cut-off events. [2024-11-19 09:37:52,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:52,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 32 events. 6/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 66 event pairs, 6 based on Foata normal form. 4/31 useless extension candidates. Maximal degree in co-relation 52. Up to 19 conditions per place. [2024-11-19 09:37:52,631 INFO L140 encePairwiseOnDemand]: 20/23 looper letters, 6 selfloop transitions, 2 changer transitions 0/14 dead transitions. [2024-11-19 09:37:52,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 14 transitions, 50 flow [2024-11-19 09:37:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:37:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:37:52,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-11-19 09:37:52,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2024-11-19 09:37:52,634 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 36 flow. Second operand 4 states and 45 transitions. [2024-11-19 09:37:52,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 14 transitions, 50 flow [2024-11-19 09:37:52,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 14 transitions, 49 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:37:52,635 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 37 flow [2024-11-19 09:37:52,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=37, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2024-11-19 09:37:52,636 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-11-19 09:37:52,637 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 37 flow [2024-11-19 09:37:52,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 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) [2024-11-19 09:37:52,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:37:52,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:37:52,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:37:52,638 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-11-19 09:37:52,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:37:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1732769736, now seen corresponding path program 1 times [2024-11-19 09:37:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:37:52,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284585637] [2024-11-19 09:37:52,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:37:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:37:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:37:52,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:37:52,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:37:52,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284585637] [2024-11-19 09:37:52,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284585637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:37:52,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:37:52,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:37:52,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860179171] [2024-11-19 09:37:52,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:37:52,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:37:52,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:37:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:37:52,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:37:52,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-19 09:37:52,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 37 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 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) [2024-11-19 09:37:52,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:37:52,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-19 09:37:52,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:37:52,982 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-11-19 09:37:52,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:37:52,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 29 events. 6/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 6 based on Foata normal form. 4/31 useless extension candidates. Maximal degree in co-relation 50. Up to 19 conditions per place. [2024-11-19 09:37:52,983 INFO L140 encePairwiseOnDemand]: 20/23 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2024-11-19 09:37:52,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 13 transitions, 51 flow [2024-11-19 09:37:52,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:37:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:37:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-11-19 09:37:52,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2024-11-19 09:37:52,986 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 37 flow. Second operand 4 states and 45 transitions. [2024-11-19 09:37:52,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 13 transitions, 51 flow [2024-11-19 09:37:52,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 13 transitions, 48 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:37:52,987 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-11-19 09:37:52,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-11-19 09:37:52,987 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-11-19 09:37:52,987 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-11-19 09:37:52,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 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) [2024-11-19 09:37:52,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-19 09:37:52,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2024-11-19 09:37:52,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2024-11-19 09:37:52,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-19 09:37:52,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-11-19 09:37:52,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-11-19 09:37:52,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2024-11-19 09:37:52,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 8 remaining) [2024-11-19 09:37:52,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:37:52,996 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 09:37:53,002 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:37:53,004 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:37:53,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:37:53 BasicIcfg [2024-11-19 09:37:53,011 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:37:53,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:37:53,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:37:53,012 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:37:53,012 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:37:51" (3/4) ... [2024-11-19 09:37:53,013 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:37:53,018 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 09:37:53,026 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2024-11-19 09:37:53,027 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-19 09:37:53,028 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:37:53,028 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 09:37:53,109 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:37:53,109 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:37:53,110 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:37:53,110 INFO L158 Benchmark]: Toolchain (without parser) took 3139.86ms. Allocated memory was 172.0MB in the beginning and 226.5MB in the end (delta: 54.5MB). Free memory was 115.7MB in the beginning and 161.7MB in the end (delta: -46.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,111 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:37:53,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.55ms. Allocated memory is still 172.0MB. Free memory was 115.1MB in the beginning and 83.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.42ms. Allocated memory is still 172.0MB. Free memory was 83.6MB in the beginning and 81.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,112 INFO L158 Benchmark]: Boogie Preprocessor took 34.44ms. Allocated memory is still 172.0MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,112 INFO L158 Benchmark]: RCFGBuilder took 581.90ms. Allocated memory is still 172.0MB. Free memory was 79.4MB in the beginning and 46.6MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,112 INFO L158 Benchmark]: TraceAbstraction took 1711.88ms. Allocated memory was 172.0MB in the beginning and 226.5MB in the end (delta: 54.5MB). Free memory was 138.7MB in the beginning and 167.0MB in the end (delta: -28.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,113 INFO L158 Benchmark]: Witness Printer took 98.27ms. Allocated memory is still 226.5MB. Free memory was 167.0MB in the beginning and 161.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 09:37:53,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.55ms. Allocated memory is still 172.0MB. Free memory was 115.1MB in the beginning and 83.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.42ms. Allocated memory is still 172.0MB. Free memory was 83.6MB in the beginning and 81.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.44ms. Allocated memory is still 172.0MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.90ms. Allocated memory is still 172.0MB. Free memory was 79.4MB in the beginning and 46.6MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1711.88ms. Allocated memory was 172.0MB in the beginning and 226.5MB in the end (delta: 54.5MB). Free memory was 138.7MB in the beginning and 167.0MB in the end (delta: -28.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 98.27ms. Allocated memory is still 226.5MB. Free memory was 167.0MB in the beginning and 161.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1000]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 33 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.8s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2024-11-19 09:37:53,146 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