./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi005.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/rfi005.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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:08:49,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:08:50,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:08:50,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:08:50,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:08:50,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:08:50,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:08:50,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:08:50,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:08:50,057 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:08:50,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:08:50,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:08:50,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:08:50,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:08:50,059 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:08:50,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:08:50,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:08:50,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:08:50,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:08:50,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:08:50,062 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:08:50,065 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:08:50,065 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:08:50,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:08:50,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:08:50,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:08:50,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:08:50,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:08:50,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:08:50,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:08:50,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:08:50,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:08:50,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:08:50,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:08:50,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:08:50,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:08:50,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:08:50,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:08:50,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:08:50,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:08:50,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:08:50,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:08:50,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2024-11-12 16:08:50,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:08:50,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:08:50,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:08:50,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:08:50,344 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:08:50,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi005.i [2024-11-12 16:08:51,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:08:52,067 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:08:52,068 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi005.i [2024-11-12 16:08:52,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd61ff09/4473956e380e44a3b96a98d5e30d5a60/FLAGbffdae157 [2024-11-12 16:08:52,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd61ff09/4473956e380e44a3b96a98d5e30d5a60 [2024-11-12 16:08:52,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:08:52,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:08:52,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:08:52,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:08:52,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:08:52,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7101694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52, skipping insertion in model container [2024-11-12 16:08:52,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:08:52,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:08:52,724 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:08:52,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:08:52,827 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:08:52,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52 WrapperNode [2024-11-12 16:08:52,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:08:52,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:08:52,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:08:52,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:08:52,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,905 INFO L138 Inliner]: procedures = 174, calls = 41, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 169 [2024-11-12 16:08:52,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:08:52,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:08:52,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:08:52,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:08:52,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,952 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:08:52,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:08:52,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:08:52,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:08:52,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:08:52,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (1/1) ... [2024-11-12 16:08:52,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:08:53,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:08:53,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:08:53,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:08:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:08:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:08:53,073 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:08:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:08:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:08:53,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:08:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:08:53,076 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:08:53,198 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:08:53,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:08:53,582 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:08:53,583 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:08:53,848 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:08:53,849 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:08:53,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:08:53 BoogieIcfgContainer [2024-11-12 16:08:53,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:08:53,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:08:53,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:08:53,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:08:53,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:08:52" (1/3) ... [2024-11-12 16:08:53,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3c121d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:08:53, skipping insertion in model container [2024-11-12 16:08:53,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:52" (2/3) ... [2024-11-12 16:08:53,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3c121d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:08:53, skipping insertion in model container [2024-11-12 16:08:53,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:08:53" (3/3) ... [2024-11-12 16:08:53,861 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2024-11-12 16:08:53,878 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:08:53,878 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-12 16:08:53,878 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:08:53,934 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:08:53,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 86 flow [2024-11-12 16:08:54,001 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-12 16:08:54,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:54,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 37 events. 2/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-12 16:08:54,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 39 transitions, 86 flow [2024-11-12 16:08:54,010 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 37 transitions, 80 flow [2024-11-12 16:08:54,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:08:54,030 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;@5364c41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:08:54,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 16:08:54,035 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:08:54,035 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-12 16:08:54,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:54,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:54,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-12 16:08:54,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-12 16:08:54,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:54,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1159008108, now seen corresponding path program 1 times [2024-11-12 16:08:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:54,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519854556] [2024-11-12 16:08:54,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:54,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:54,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:54,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519854556] [2024-11-12 16:08:54,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519854556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:54,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:54,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:08:54,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924018787] [2024-11-12 16:08:54,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:54,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:08:54,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:54,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:08:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:08:54,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-11-12 16:08:54,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:08:54,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:54,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-11-12 16:08:54,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:54,918 INFO L124 PetriNetUnfolderBase]: 272/545 cut-off events. [2024-11-12 16:08:54,918 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:54,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 545 events. 272/545 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3288 event pairs, 20 based on Foata normal form. 42/553 useless extension candidates. Maximal degree in co-relation 1015. Up to 415 conditions per place. [2024-11-12 16:08:54,927 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 28 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-11-12 16:08:54,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 152 flow [2024-11-12 16:08:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:08:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:08:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-12 16:08:54,940 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6837606837606838 [2024-11-12 16:08:54,942 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 80 flow. Second operand 3 states and 80 transitions. [2024-11-12 16:08:54,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 152 flow [2024-11-12 16:08:54,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:08:54,947 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 74 flow [2024-11-12 16:08:54,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2024-11-12 16:08:54,952 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2024-11-12 16:08:54,953 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 74 flow [2024-11-12 16:08:54,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:08:54,953 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:54,953 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:08:54,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:08:54,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-12 16:08:54,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:54,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1569513469, now seen corresponding path program 1 times [2024-11-12 16:08:54,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:54,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750360994] [2024-11-12 16:08:54,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:54,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:08:54,980 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 16:08:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:08:55,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 16:08:55,038 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 16:08:55,039 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-12 16:08:55,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-12 16:08:55,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-12 16:08:55,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-11-12 16:08:55,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2024-11-12 16:08:55,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-12 16:08:55,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-12 16:08:55,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-11-12 16:08:55,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:08:55,043 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 16:08:55,081 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:08:55,081 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:08:55,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:08:55 BasicIcfg [2024-11-12 16:08:55,090 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:08:55,091 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:08:55,091 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:08:55,091 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:08:55,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:08:53" (3/4) ... [2024-11-12 16:08:55,094 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 16:08:55,095 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:08:55,096 INFO L158 Benchmark]: Toolchain (without parser) took 2983.85ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 81.7MB in the end (delta: 11.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-12 16:08:55,097 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 71.8MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:08:55,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.72ms. Allocated memory is still 163.6MB. Free memory was 93.2MB in the beginning and 120.0MB in the end (delta: -26.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-11-12 16:08:55,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.03ms. Allocated memory is still 163.6MB. Free memory was 120.0MB in the beginning and 116.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:08:55,098 INFO L158 Benchmark]: Boogie Preprocessor took 75.81ms. Allocated memory is still 163.6MB. Free memory was 116.8MB in the beginning and 112.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:08:55,098 INFO L158 Benchmark]: RCFGBuilder took 862.47ms. Allocated memory is still 163.6MB. Free memory was 112.6MB in the beginning and 129.1MB in the end (delta: -16.6MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2024-11-12 16:08:55,099 INFO L158 Benchmark]: TraceAbstraction took 1236.69ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 81.7MB in the end (delta: 46.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2024-11-12 16:08:55,099 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 163.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:08:55,103 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 71.8MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 714.72ms. Allocated memory is still 163.6MB. Free memory was 93.2MB in the beginning and 120.0MB in the end (delta: -26.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.03ms. Allocated memory is still 163.6MB. Free memory was 120.0MB in the beginning and 116.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.81ms. Allocated memory is still 163.6MB. Free memory was 116.8MB in the beginning and 112.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 862.47ms. Allocated memory is still 163.6MB. Free memory was 112.6MB in the beginning and 129.1MB in the end (delta: -16.6MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1236.69ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 81.7MB in the end (delta: 46.5MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 163.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1665=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1665=-1, t1666=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "rfi005.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-12 16:08:55,138 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/pthread-wmm/rfi005.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:08:57,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:08:57,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-12 16:08:57,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:08:57,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:08:57,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:08:57,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:08:57,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:08:57,528 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:08:57,528 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:08:57,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:08:57,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:08:57,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:08:57,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:08:57,532 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:08:57,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:08:57,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:08:57,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:08:57,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:08:57,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:08:57,534 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:08:57,538 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:08:57,539 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:08:57,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:08:57,539 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:08:57,539 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-12 16:08:57,540 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:08:57,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-12 16:08:57,540 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:08:57,541 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:08:57,541 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:08:57,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:08:57,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:08:57,542 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:08:57,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:08:57,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:08:57,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:08:57,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:08:57,545 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-12 16:08:57,545 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-12 16:08:57,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:08:57,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:08:57,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:08:57,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:08:57,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2024-11-12 16:08:57,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:08:57,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:08:57,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:08:57,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:08:57,910 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:08:57,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi005.i [2024-11-12 16:08:59,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:08:59,656 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:08:59,657 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi005.i [2024-11-12 16:08:59,679 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6cd8eefb/ccc9985b797343b29c7b2629773a44dc/FLAG15a32fed8 [2024-11-12 16:08:59,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6cd8eefb/ccc9985b797343b29c7b2629773a44dc [2024-11-12 16:08:59,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:08:59,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:08:59,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:08:59,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:08:59,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:08:59,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:08:59" (1/1) ... [2024-11-12 16:08:59,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6292b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:59, skipping insertion in model container [2024-11-12 16:08:59,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:08:59" (1/1) ... [2024-11-12 16:09:00,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:09:00,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:09:00,468 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:09:00,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:09:00,576 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:09:00,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00 WrapperNode [2024-11-12 16:09:00,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:09:00,578 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:09:00,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:09:00,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:09:00,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,654 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 170 [2024-11-12 16:09:00,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:09:00,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:09:00,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:09:00,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:09:00,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,717 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:09:00,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:09:00,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:09:00,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:09:00,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:09:00,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (1/1) ... [2024-11-12 16:09:00,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:09:00,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:09:00,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:09:00,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:09:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:09:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:09:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-12 16:09:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:09:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:09:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:09:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:09:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:09:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:09:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:09:00,849 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:09:01,011 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:09:01,014 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:09:01,424 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:09:01,425 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:09:01,708 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:09:01,709 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:09:01,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:09:01 BoogieIcfgContainer [2024-11-12 16:09:01,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:09:01,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:09:01,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:09:01,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:09:01,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:08:59" (1/3) ... [2024-11-12 16:09:01,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b1a787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:09:01, skipping insertion in model container [2024-11-12 16:09:01,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:09:00" (2/3) ... [2024-11-12 16:09:01,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b1a787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:09:01, skipping insertion in model container [2024-11-12 16:09:01,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:09:01" (3/3) ... [2024-11-12 16:09:01,722 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2024-11-12 16:09:01,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:09:01,741 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-12 16:09:01,741 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:09:01,801 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:09:01,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 86 flow [2024-11-12 16:09:01,870 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-12 16:09:01,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:09:01,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 37 events. 2/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-12 16:09:01,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 39 transitions, 86 flow [2024-11-12 16:09:01,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 37 transitions, 80 flow [2024-11-12 16:09:01,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:09:01,899 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;@7244fe5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:09:01,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 16:09:01,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:09:01,915 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-12 16:09:01,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:09:01,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:09:01,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-12 16:09:01,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-12 16:09:01,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:09:01,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1216329900, now seen corresponding path program 1 times [2024-11-12 16:09:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 16:09:01,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130457310] [2024-11-12 16:09:01,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:09:01,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 16:09:01,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 16:09:01,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 16:09:01,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-12 16:09:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:09:02,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 16:09:02,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:09:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:09:02,103 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 16:09:02,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-12 16:09:02,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130457310] [2024-11-12 16:09:02,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130457310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:09:02,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:09:02,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:09:02,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800623439] [2024-11-12 16:09:02,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:09:02,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:09:02,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-12 16:09:02,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:09:02,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:09:02,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-11-12 16:09:02,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:09:02,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:09:02,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-11-12 16:09:02,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:09:02,404 INFO L124 PetriNetUnfolderBase]: 272/545 cut-off events. [2024-11-12 16:09:02,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:09:02,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 545 events. 272/545 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3281 event pairs, 20 based on Foata normal form. 42/555 useless extension candidates. Maximal degree in co-relation 1015. Up to 415 conditions per place. [2024-11-12 16:09:02,413 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 28 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-11-12 16:09:02,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 152 flow [2024-11-12 16:09:02,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:09:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:09:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-12 16:09:02,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6837606837606838 [2024-11-12 16:09:02,428 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 80 flow. Second operand 3 states and 80 transitions. [2024-11-12 16:09:02,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 152 flow [2024-11-12 16:09:02,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:09:02,433 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 74 flow [2024-11-12 16:09:02,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2024-11-12 16:09:02,439 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2024-11-12 16:09:02,439 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 74 flow [2024-11-12 16:09:02,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:09:02,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:09:02,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:09:02,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-12 16:09:02,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 16:09:02,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-12 16:09:02,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:09:02,644 INFO L85 PathProgramCache]: Analyzing trace with hash -948478273, now seen corresponding path program 1 times [2024-11-12 16:09:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-12 16:09:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551960586] [2024-11-12 16:09:02,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:09:02,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 16:09:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-12 16:09:02,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-12 16:09:02,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-12 16:09:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:09:02,721 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 16:09:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:09:02,817 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-12 16:09:02,817 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 16:09:02,819 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-12 16:09:02,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-12 16:09:02,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-12 16:09:02,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-11-12 16:09:02,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2024-11-12 16:09:02,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-12 16:09:02,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-12 16:09:02,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-11-12 16:09:02,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-12 16:09:03,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-12 16:09:03,022 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 16:09:03,050 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:09:03,050 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:09:03,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:09:03 BasicIcfg [2024-11-12 16:09:03,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:09:03,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:09:03,056 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:09:03,056 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:09:03,056 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:09:01" (3/4) ... [2024-11-12 16:09:03,057 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 16:09:03,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:09:03,059 INFO L158 Benchmark]: Toolchain (without parser) took 3121.94ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 40.7MB in the beginning and 63.9MB in the end (delta: -23.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-11-12 16:09:03,059 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 44.0MB. Free memory is still 20.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:09:03,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.03ms. Allocated memory is still 65.0MB. Free memory was 40.6MB in the beginning and 30.3MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 16:09:03,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.46ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 27.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:09:03,061 INFO L158 Benchmark]: Boogie Preprocessor took 96.72ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 27.1MB in the beginning and 55.0MB in the end (delta: -27.9MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-11-12 16:09:03,061 INFO L158 Benchmark]: RCFGBuilder took 952.01ms. Allocated memory is still 79.7MB. Free memory was 55.0MB in the beginning and 46.8MB in the end (delta: 8.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-11-12 16:09:03,062 INFO L158 Benchmark]: TraceAbstraction took 1343.24ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 46.4MB in the beginning and 64.7MB in the end (delta: -18.4MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-11-12 16:09:03,062 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 63.9MB in the end (delta: 806.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:09:03,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 44.0MB. Free memory is still 20.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 639.03ms. Allocated memory is still 65.0MB. Free memory was 40.6MB in the beginning and 30.3MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.46ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 27.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.72ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 27.1MB in the beginning and 55.0MB in the end (delta: -27.9MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * RCFGBuilder took 952.01ms. Allocated memory is still 79.7MB. Free memory was 55.0MB in the beginning and 46.8MB in the end (delta: 8.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1343.24ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 46.4MB in the beginning and 64.7MB in the end (delta: -18.4MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 63.9MB in the end (delta: 806.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1665=-1, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1665=-1, t1666=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "rfi005.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-12 16:09:03,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample