./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.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 62286332e049ab35f6bf4022df54bae198ba0ceaf820c98713e2f1f442f473b5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:19:10,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:19:10,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:19:10,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:19:10,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:19:10,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:19:10,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:19:10,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:19:10,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:19:10,853 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:19:10,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:19:10,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:19:10,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:19:10,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:19:10,857 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:19:10,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:19:10,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:19:10,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:19:10,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:19:10,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:19:10,859 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:19:10,859 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:19:10,860 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:19:10,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:19:10,860 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:19:10,861 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:19:10,861 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:19:10,861 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:19:10,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:19:10,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:19:10,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:19:10,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:19:10,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:19:10,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:19:10,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:19:10,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:19:10,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:19:10,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:19:10,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:19:10,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:19:10,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:19:10,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:19:10,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62286332e049ab35f6bf4022df54bae198ba0ceaf820c98713e2f1f442f473b5 [2024-11-20 17:19:11,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:19:11,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:19:11,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:19:11,170 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:19:11,170 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:19:11,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.i [2024-11-20 17:19:12,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:19:12,880 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:19:12,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.i [2024-11-20 17:19:12,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed647d8e/b6f27be972594bdda9425752277dd462/FLAG04e12f8e7 [2024-11-20 17:19:13,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed647d8e/b6f27be972594bdda9425752277dd462 [2024-11-20 17:19:13,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:19:13,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:19:13,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:19:13,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:19:13,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:19:13,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b98918d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13, skipping insertion in model container [2024-11-20 17:19:13,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:19:13,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:19:13,629 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:19:13,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:19:13,759 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:19:13,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13 WrapperNode [2024-11-20 17:19:13,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:19:13,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:19:13,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:19:13,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:19:13,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,830 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-11-20 17:19:13,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:19:13,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:19:13,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:19:13,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:19:13,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,887 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]. [2024-11-20 17:19:13,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:19:13,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:19:13,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:19:13,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:19:13,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (1/1) ... [2024-11-20 17:19:13,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:19:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:19:13,955 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) [2024-11-20 17:19:13,957 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 [2024-11-20 17:19:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:19:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:19:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:19:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:19:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:19:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:19:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:19:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:19:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:19:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:19:14,028 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:19:14,195 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:19:14,197 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:19:14,501 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:19:14,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:19:14,737 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:19:14,737 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:19:14,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:14 BoogieIcfgContainer [2024-11-20 17:19:14,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:19:14,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:19:14,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:19:14,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:19:14,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:19:13" (1/3) ... [2024-11-20 17:19:14,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b9f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:19:14, skipping insertion in model container [2024-11-20 17:19:14,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:13" (2/3) ... [2024-11-20 17:19:14,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b9f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:19:14, skipping insertion in model container [2024-11-20 17:19:14,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:14" (3/3) ... [2024-11-20 17:19:14,749 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.oepc.i [2024-11-20 17:19:14,767 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:19:14,767 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:19:14,767 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:19:14,824 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:19:14,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 82 flow [2024-11-20 17:19:14,893 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-20 17:19:14,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:14,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2024-11-20 17:19:14,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 82 flow [2024-11-20 17:19:14,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 76 flow [2024-11-20 17:19:14,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:19:14,923 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;@7929aff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:19:14,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-20 17:19:14,928 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:19:14,928 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:19:14,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:14,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:14,929 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:19:14,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:14,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash 12053908, now seen corresponding path program 1 times [2024-11-20 17:19:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249398756] [2024-11-20 17:19:14,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:14,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249398756] [2024-11-20 17:19:15,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249398756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:15,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:15,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:19:15,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644249861] [2024-11-20 17:19:15,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:15,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:19:15,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:15,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:19:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:19:15,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-11-20 17:19:15,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:19:15,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:15,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-11-20 17:19:15,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:15,776 INFO L124 PetriNetUnfolderBase]: 237/502 cut-off events. [2024-11-20 17:19:15,777 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 17:19:15,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 502 events. 237/502 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2777 event pairs, 21 based on Foata normal form. 40/537 useless extension candidates. Maximal degree in co-relation 916. Up to 353 conditions per place. [2024-11-20 17:19:15,784 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 26 selfloop transitions, 2 changer transitions 2/43 dead transitions. [2024-11-20 17:19:15,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 155 flow [2024-11-20 17:19:15,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:19:15,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:19:15,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-20 17:19:15,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7207207207207207 [2024-11-20 17:19:15,797 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 76 flow. Second operand 3 states and 80 transitions. [2024-11-20 17:19:15,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 155 flow [2024-11-20 17:19:15,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:15,802 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 68 flow [2024-11-20 17:19:15,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-20 17:19:15,808 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-20 17:19:15,809 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 68 flow [2024-11-20 17:19:15,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:19:15,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:15,809 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:15,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:19:15,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:15,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:15,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1311800578, now seen corresponding path program 1 times [2024-11-20 17:19:15,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:15,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564784790] [2024-11-20 17:19:15,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:15,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:15,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:15,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564784790] [2024-11-20 17:19:15,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564784790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:15,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:15,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:19:15,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219211825] [2024-11-20 17:19:15,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:15,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:19:15,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:15,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:19:15,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:19:15,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-20 17:19:15,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-20 17:19:15,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:15,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-20 17:19:15,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:16,053 INFO L124 PetriNetUnfolderBase]: 206/472 cut-off events. [2024-11-20 17:19:16,054 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-20 17:19:16,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 472 events. 206/472 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2604 event pairs, 206 based on Foata normal form. 20/473 useless extension candidates. Maximal degree in co-relation 865. Up to 357 conditions per place. [2024-11-20 17:19:16,058 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 15 selfloop transitions, 1 changer transitions 1/29 dead transitions. [2024-11-20 17:19:16,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 100 flow [2024-11-20 17:19:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:19:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:19:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-20 17:19:16,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5405405405405406 [2024-11-20 17:19:16,061 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 68 flow. Second operand 3 states and 60 transitions. [2024-11-20 17:19:16,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 100 flow [2024-11-20 17:19:16,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:16,062 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 62 flow [2024-11-20 17:19:16,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-20 17:19:16,063 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-20 17:19:16,064 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 62 flow [2024-11-20 17:19:16,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2024-11-20 17:19:16,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:16,064 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:16,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:19:16,065 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:16,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:16,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1311800501, now seen corresponding path program 1 times [2024-11-20 17:19:16,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:16,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653726144] [2024-11-20 17:19:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:16,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:16,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653726144] [2024-11-20 17:19:16,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653726144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:16,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:16,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:19:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258046937] [2024-11-20 17:19:16,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:16,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:19:16,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:16,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:19:16,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:19:16,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-20 17:19:16,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-20 17:19:16,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:16,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-20 17:19:16,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:16,719 INFO L124 PetriNetUnfolderBase]: 476/926 cut-off events. [2024-11-20 17:19:16,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:16,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 926 events. 476/926 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5152 event pairs, 200 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 1749. Up to 512 conditions per place. [2024-11-20 17:19:16,726 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 24 selfloop transitions, 3 changer transitions 39/74 dead transitions. [2024-11-20 17:19:16,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 74 transitions, 288 flow [2024-11-20 17:19:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:19:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:19:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions. [2024-11-20 17:19:16,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.527027027027027 [2024-11-20 17:19:16,731 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 62 flow. Second operand 8 states and 156 transitions. [2024-11-20 17:19:16,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 74 transitions, 288 flow [2024-11-20 17:19:16,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 74 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:19:16,733 INFO L231 Difference]: Finished difference. Result has 46 places, 29 transitions, 94 flow [2024-11-20 17:19:16,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=29} [2024-11-20 17:19:16,734 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2024-11-20 17:19:16,735 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 94 flow [2024-11-20 17:19:16,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-20 17:19:16,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:16,735 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:16,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:19:16,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:16,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:16,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1938054129, now seen corresponding path program 1 times [2024-11-20 17:19:16,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:16,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807785159] [2024-11-20 17:19:16,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:16,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:17,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:17,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807785159] [2024-11-20 17:19:17,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807785159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:17,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:17,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:19:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902316041] [2024-11-20 17:19:17,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:17,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:19:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:19:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:19:17,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-20 17:19:17,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 29 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-20 17:19:17,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:17,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-20 17:19:17,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:17,325 INFO L124 PetriNetUnfolderBase]: 337/675 cut-off events. [2024-11-20 17:19:17,325 INFO L125 PetriNetUnfolderBase]: For 413/418 co-relation queries the response was YES. [2024-11-20 17:19:17,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 675 events. 337/675 cut-off events. For 413/418 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3404 event pairs, 79 based on Foata normal form. 20/690 useless extension candidates. Maximal degree in co-relation 1617. Up to 435 conditions per place. [2024-11-20 17:19:17,330 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 25 selfloop transitions, 3 changer transitions 23/59 dead transitions. [2024-11-20 17:19:17,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 278 flow [2024-11-20 17:19:17,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:19:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:19:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-11-20 17:19:17,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4980694980694981 [2024-11-20 17:19:17,332 INFO L175 Difference]: Start difference. First operand has 46 places, 29 transitions, 94 flow. Second operand 7 states and 129 transitions. [2024-11-20 17:19:17,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 278 flow [2024-11-20 17:19:17,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 261 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-20 17:19:17,337 INFO L231 Difference]: Finished difference. Result has 48 places, 29 transitions, 104 flow [2024-11-20 17:19:17,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=104, PETRI_PLACES=48, PETRI_TRANSITIONS=29} [2024-11-20 17:19:17,338 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-20 17:19:17,338 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 29 transitions, 104 flow [2024-11-20 17:19:17,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-20 17:19:17,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:17,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:17,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:19:17,339 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:17,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash 450496585, now seen corresponding path program 1 times [2024-11-20 17:19:17,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:17,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884321288] [2024-11-20 17:19:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:17,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:17,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884321288] [2024-11-20 17:19:17,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884321288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:17,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:17,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:19:17,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783072587] [2024-11-20 17:19:17,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:17,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:19:17,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:17,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:19:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:19:17,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-20 17:19:17,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 29 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-20 17:19:17,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:17,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-20 17:19:17,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:17,842 INFO L124 PetriNetUnfolderBase]: 309/618 cut-off events. [2024-11-20 17:19:17,842 INFO L125 PetriNetUnfolderBase]: For 602/612 co-relation queries the response was YES. [2024-11-20 17:19:17,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 618 events. 309/618 cut-off events. For 602/612 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2987 event pairs, 165 based on Foata normal form. 26/640 useless extension candidates. Maximal degree in co-relation 1550. Up to 341 conditions per place. [2024-11-20 17:19:17,847 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 26 selfloop transitions, 3 changer transitions 25/62 dead transitions. [2024-11-20 17:19:17,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 62 transitions, 308 flow [2024-11-20 17:19:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:19:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:19:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-11-20 17:19:17,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5096525096525096 [2024-11-20 17:19:17,849 INFO L175 Difference]: Start difference. First operand has 48 places, 29 transitions, 104 flow. Second operand 7 states and 132 transitions. [2024-11-20 17:19:17,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 62 transitions, 308 flow [2024-11-20 17:19:17,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 278 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-20 17:19:17,853 INFO L231 Difference]: Finished difference. Result has 49 places, 29 transitions, 105 flow [2024-11-20 17:19:17,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=105, PETRI_PLACES=49, PETRI_TRANSITIONS=29} [2024-11-20 17:19:17,854 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-20 17:19:17,854 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 29 transitions, 105 flow [2024-11-20 17:19:17,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-20 17:19:17,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:17,855 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:17,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:19:17,855 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:17,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:17,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2063761501, now seen corresponding path program 1 times [2024-11-20 17:19:17,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:17,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447794840] [2024-11-20 17:19:17,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:17,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:18,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:18,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447794840] [2024-11-20 17:19:18,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447794840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:18,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:18,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:19:18,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895580806] [2024-11-20 17:19:18,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:18,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:19:18,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:18,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:19:18,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:19:18,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-20 17:19:18,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 29 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-20 17:19:18,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:18,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-20 17:19:18,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:18,238 INFO L124 PetriNetUnfolderBase]: 245/498 cut-off events. [2024-11-20 17:19:18,238 INFO L125 PetriNetUnfolderBase]: For 313/315 co-relation queries the response was YES. [2024-11-20 17:19:18,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 498 events. 245/498 cut-off events. For 313/315 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2233 event pairs, 48 based on Foata normal form. 34/522 useless extension candidates. Maximal degree in co-relation 1189. Up to 211 conditions per place. [2024-11-20 17:19:18,242 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 35 selfloop transitions, 4 changer transitions 1/49 dead transitions. [2024-11-20 17:19:18,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 241 flow [2024-11-20 17:19:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:19:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:19:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-20 17:19:18,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6013513513513513 [2024-11-20 17:19:18,243 INFO L175 Difference]: Start difference. First operand has 49 places, 29 transitions, 105 flow. Second operand 4 states and 89 transitions. [2024-11-20 17:19:18,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 241 flow [2024-11-20 17:19:18,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 213 flow, removed 9 selfloop flow, removed 8 redundant places. [2024-11-20 17:19:18,246 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 111 flow [2024-11-20 17:19:18,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2024-11-20 17:19:18,247 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2024-11-20 17:19:18,247 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 111 flow [2024-11-20 17:19:18,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-20 17:19:18,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:18,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:18,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:19:18,248 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:18,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash -340504463, now seen corresponding path program 1 times [2024-11-20 17:19:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:18,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153793660] [2024-11-20 17:19:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:18,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:18,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153793660] [2024-11-20 17:19:18,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153793660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:18,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:18,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 17:19:18,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837426004] [2024-11-20 17:19:18,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:18,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:19:18,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:19:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:19:18,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-20 17:19:18,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-11-20 17:19:18,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:18,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-20 17:19:18,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:18,765 INFO L124 PetriNetUnfolderBase]: 299/640 cut-off events. [2024-11-20 17:19:18,765 INFO L125 PetriNetUnfolderBase]: For 202/209 co-relation queries the response was YES. [2024-11-20 17:19:18,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 640 events. 299/640 cut-off events. For 202/209 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3248 event pairs, 85 based on Foata normal form. 13/639 useless extension candidates. Maximal degree in co-relation 1491. Up to 280 conditions per place. [2024-11-20 17:19:18,769 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 31 selfloop transitions, 2 changer transitions 17/61 dead transitions. [2024-11-20 17:19:18,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 288 flow [2024-11-20 17:19:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:19:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:19:18,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-11-20 17:19:18,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-11-20 17:19:18,771 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 111 flow. Second operand 6 states and 116 transitions. [2024-11-20 17:19:18,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 288 flow [2024-11-20 17:19:18,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 277 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:18,773 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 121 flow [2024-11-20 17:19:18,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=121, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2024-11-20 17:19:18,774 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-20 17:19:18,774 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 121 flow [2024-11-20 17:19:18,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2024-11-20 17:19:18,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:18,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:18,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:19:18,775 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:18,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:18,776 INFO L85 PathProgramCache]: Analyzing trace with hash 825128191, now seen corresponding path program 2 times [2024-11-20 17:19:18,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:18,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787030324] [2024-11-20 17:19:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:18,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:19,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:19:19,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787030324] [2024-11-20 17:19:19,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787030324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:19,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:19,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:19:19,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875561064] [2024-11-20 17:19:19,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:19,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:19:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:19:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:19:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:19:19,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-20 17:19:19,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-20 17:19:19,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:19,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-20 17:19:19,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:19,165 INFO L124 PetriNetUnfolderBase]: 198/406 cut-off events. [2024-11-20 17:19:19,166 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-20 17:19:19,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 406 events. 198/406 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1659 event pairs, 47 based on Foata normal form. 34/431 useless extension candidates. Maximal degree in co-relation 957. Up to 173 conditions per place. [2024-11-20 17:19:19,168 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 26 selfloop transitions, 6 changer transitions 5/46 dead transitions. [2024-11-20 17:19:19,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 227 flow [2024-11-20 17:19:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:19:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:19:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2024-11-20 17:19:19,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5243243243243243 [2024-11-20 17:19:19,169 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 121 flow. Second operand 5 states and 97 transitions. [2024-11-20 17:19:19,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 227 flow [2024-11-20 17:19:19,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 46 transitions, 209 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-20 17:19:19,171 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 117 flow [2024-11-20 17:19:19,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=30} [2024-11-20 17:19:19,171 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2024-11-20 17:19:19,171 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 117 flow [2024-11-20 17:19:19,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-20 17:19:19,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:19,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:19,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:19:19,173 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:19,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1069819956, now seen corresponding path program 1 times [2024-11-20 17:19:19,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:19:19,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216323236] [2024-11-20 17:19:19,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:19:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:19:19,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:19:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:19:19,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 17:19:19,444 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:19:19,445 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-20 17:19:19,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-20 17:19:19,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-20 17:19:19,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-20 17:19:19,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-20 17:19:19,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-20 17:19:19,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 17:19:19,449 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:19,529 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:19:19,530 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:19:19,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:19:19 BasicIcfg [2024-11-20 17:19:19,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:19:19,539 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:19:19,539 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:19:19,539 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:19:19,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:14" (3/4) ... [2024-11-20 17:19:19,541 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 17:19:19,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:19:19,543 INFO L158 Benchmark]: Toolchain (without parser) took 6368.87ms. Allocated memory was 165.7MB in the beginning and 249.6MB in the end (delta: 83.9MB). Free memory was 133.8MB in the beginning and 125.5MB in the end (delta: 8.2MB). Peak memory consumption was 93.1MB. Max. memory is 16.1GB. [2024-11-20 17:19:19,543 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:19:19,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.25ms. Allocated memory is still 165.7MB. Free memory was 133.8MB in the beginning and 106.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-20 17:19:19,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.49ms. Allocated memory is still 165.7MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:19:19,545 INFO L158 Benchmark]: Boogie Preprocessor took 81.56ms. Allocated memory is still 165.7MB. Free memory was 104.4MB in the beginning and 100.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:19:19,546 INFO L158 Benchmark]: RCFGBuilder took 820.52ms. Allocated memory is still 165.7MB. Free memory was 100.2MB in the beginning and 82.6MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-20 17:19:19,546 INFO L158 Benchmark]: TraceAbstraction took 4797.21ms. Allocated memory was 165.7MB in the beginning and 249.6MB in the end (delta: 83.9MB). Free memory was 81.5MB in the beginning and 125.5MB in the end (delta: -44.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-11-20 17:19:19,546 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 249.6MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:19:19,548 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.25ms. Allocated memory is still 165.7MB. Free memory was 133.8MB in the beginning and 106.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.49ms. Allocated memory is still 165.7MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.56ms. Allocated memory is still 165.7MB. Free memory was 104.4MB in the beginning and 100.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 820.52ms. Allocated memory is still 165.7MB. Free memory was 100.2MB in the beginning and 82.6MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4797.21ms. Allocated memory was 165.7MB in the beginning and 249.6MB in the end (delta: 83.9MB). Free memory was 81.5MB in the beginning and 125.5MB in the end (delta: -44.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 249.6MB. Free memory is still 125.5MB. 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_p0_EBX = 0; [L715] 0 int __unbuffered_p1_EAX = 0; [L717] 0 int __unbuffered_p1_EBX = 0; [L718] 0 _Bool main$tmp_guard0; [L719] 0 _Bool main$tmp_guard1; [L721] 0 int x = 0; [L723] 0 int y = 0; [L724] 0 _Bool y$flush_delayed; [L725] 0 int y$mem_tmp; [L726] 0 _Bool y$r_buff0_thd0; [L727] 0 _Bool y$r_buff0_thd1; [L728] 0 _Bool y$r_buff0_thd2; [L729] 0 _Bool y$r_buff1_thd0; [L730] 0 _Bool y$r_buff1_thd1; [L731] 0 _Bool y$r_buff1_thd2; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L831] 0 pthread_t t0; [L832] FCALL, FORK 0 pthread_create(&t0, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t0=-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] [L743] 1 y$w_buff1 = y$w_buff0 [L744] 1 y$w_buff0 = 1 [L745] 1 y$w_buff1_used = y$w_buff0_used [L746] 1 y$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L748] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L749] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L750] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L751] 1 y$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$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=1, 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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L833] 0 pthread_t t1; [L834] FCALL, FORK 0 pthread_create(&t1, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t0=-1, t1=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=1, 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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L754] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L755] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L756] 1 y$flush_delayed = weak$$choice2 [L757] 1 y$mem_tmp = y [L758] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L759] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L760] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L761] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L762] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L763] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L764] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 __unbuffered_p0_EAX = y [L766] 1 y = y$flush_delayed ? y$mem_tmp : y [L767] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L770] 1 __unbuffered_p0_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L787] 2 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L790] 2 __unbuffered_p1_EAX = x VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L793] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L794] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L795] 2 y$flush_delayed = weak$$choice2 [L796] 2 y$mem_tmp = y [L797] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L798] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L799] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L800] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L801] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L802] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L803] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L804] 2 __unbuffered_p1_EBX = y [L805] 2 y = y$flush_delayed ? y$mem_tmp : y [L806] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L773] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L774] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L775] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L776] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L777] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L809] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L810] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L811] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L812] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L813] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L780] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L816] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L836] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t0=-1, t1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L838] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L838] RET 0 assume_abort_if_not(main$tmp_guard0) [L840] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L841] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L842] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L843] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L844] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t0=-1, t1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L847] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t0=-1, t1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L849] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L18] 0 __assert_fail ("0", "mix000.oepc.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - 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: 829]: 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 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: 834]: 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, 55 locations, 6 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: 4.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 694 IncrementalHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 16 mSDtfsCounter, 694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=7, InterpolantAutomatonStates: 43, 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, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 [2024-11-20 17:19:19,576 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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.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 62286332e049ab35f6bf4022df54bae198ba0ceaf820c98713e2f1f442f473b5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:19:21,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:19:21,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 17:19:21,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:19:21,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:19:21,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:19:21,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:19:21,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:19:21,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:19:21,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:19:21,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:19:21,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:19:21,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:19:21,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:19:21,928 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:19:21,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:19:21,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:19:21,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:19:21,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:19:21,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:19:21,930 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:19:21,933 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:19:21,934 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:19:21,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:19:21,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:19:21,934 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 17:19:21,934 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:19:21,935 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 17:19:21,935 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:19:21,935 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:19:21,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:19:21,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:19:21,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:19:21,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:19:21,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:19:21,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:19:21,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:19:21,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:19:21,940 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 17:19:21,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 17:19:21,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:19:21,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:19:21,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:19:21,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:19:21,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62286332e049ab35f6bf4022df54bae198ba0ceaf820c98713e2f1f442f473b5 [2024-11-20 17:19:22,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:19:22,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:19:22,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:19:22,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:19:22,299 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:19:22,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.i [2024-11-20 17:19:23,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:19:24,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:19:24,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.i [2024-11-20 17:19:24,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9582b8a6c/932d642d65b54706a95dfcc4dc7d407f/FLAGe785aafa0 [2024-11-20 17:19:24,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9582b8a6c/932d642d65b54706a95dfcc4dc7d407f [2024-11-20 17:19:24,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:19:24,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:19:24,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:19:24,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:19:24,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:19:24,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585468ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24, skipping insertion in model container [2024-11-20 17:19:24,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:19:24,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:19:24,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:19:24,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:19:24,705 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:19:24,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24 WrapperNode [2024-11-20 17:19:24,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:19:24,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:19:24,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:19:24,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:19:24,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,769 INFO L138 Inliner]: procedures = 175, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-20 17:19:24,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:19:24,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:19:24,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:19:24,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:19:24,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,813 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]. [2024-11-20 17:19:24,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:19:24,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:19:24,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:19:24,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:19:24,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (1/1) ... [2024-11-20 17:19:24,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:19:24,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:19:24,898 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) [2024-11-20 17:19:24,901 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 [2024-11-20 17:19:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:19:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:19:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 17:19:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:19:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:19:24,944 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:19:24,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:19:24,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:19:24,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:19:24,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:19:24,946 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:19:25,096 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:19:25,099 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:19:25,491 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:19:25,492 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:19:25,750 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:19:25,752 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:19:25,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:25 BoogieIcfgContainer [2024-11-20 17:19:25,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:19:25,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:19:25,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:19:25,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:19:25,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:19:24" (1/3) ... [2024-11-20 17:19:25,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35568bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:19:25, skipping insertion in model container [2024-11-20 17:19:25,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:19:24" (2/3) ... [2024-11-20 17:19:25,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35568bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:19:25, skipping insertion in model container [2024-11-20 17:19:25,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:25" (3/3) ... [2024-11-20 17:19:25,762 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.oepc.i [2024-11-20 17:19:25,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:19:25,780 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:19:25,781 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:19:25,840 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:19:25,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 82 flow [2024-11-20 17:19:25,906 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-20 17:19:25,906 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:25,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2024-11-20 17:19:25,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 82 flow [2024-11-20 17:19:25,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 76 flow [2024-11-20 17:19:25,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:19:25,936 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;@3f6926ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:19:25,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-20 17:19:25,940 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:19:25,944 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:19:25,944 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:25,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:25,945 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:19:25,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:25,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash 12115476, now seen corresponding path program 1 times [2024-11-20 17:19:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:25,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390238177] [2024-11-20 17:19:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:25,965 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 [2024-11-20 17:19:25,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:25,969 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) [2024-11-20 17:19:25,970 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 [2024-11-20 17:19:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:26,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:19:26,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:19:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:26,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:19:26,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:19:26,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390238177] [2024-11-20 17:19:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390238177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:26,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:26,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:19:26,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171178756] [2024-11-20 17:19:26,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:26,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:19:26,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:19:26,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:19:26,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:19:26,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-11-20 17:19:26,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:19:26,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:26,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-11-20 17:19:26,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:26,453 INFO L124 PetriNetUnfolderBase]: 237/502 cut-off events. [2024-11-20 17:19:26,453 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 17:19:26,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 502 events. 237/502 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2777 event pairs, 21 based on Foata normal form. 40/537 useless extension candidates. Maximal degree in co-relation 916. Up to 353 conditions per place. [2024-11-20 17:19:26,459 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 26 selfloop transitions, 2 changer transitions 2/43 dead transitions. [2024-11-20 17:19:26,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 43 transitions, 155 flow [2024-11-20 17:19:26,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:19:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:19:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-11-20 17:19:26,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7207207207207207 [2024-11-20 17:19:26,473 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 76 flow. Second operand 3 states and 80 transitions. [2024-11-20 17:19:26,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 43 transitions, 155 flow [2024-11-20 17:19:26,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:26,479 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 68 flow [2024-11-20 17:19:26,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-20 17:19:26,487 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-20 17:19:26,488 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 68 flow [2024-11-20 17:19:26,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:19:26,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:26,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:26,493 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 (2)] Forceful destruction successful, exit code 0 [2024-11-20 17:19:26,692 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 [2024-11-20 17:19:26,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:26,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:26,694 INFO L85 PathProgramCache]: Analyzing trace with hash 372482432, now seen corresponding path program 1 times [2024-11-20 17:19:26,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:26,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059305285] [2024-11-20 17:19:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:26,696 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 [2024-11-20 17:19:26,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:26,698 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) [2024-11-20 17:19:26,699 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 [2024-11-20 17:19:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:26,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:19:26,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:19:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:26,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:19:26,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:19:26,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059305285] [2024-11-20 17:19:26,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059305285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:26,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:26,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:19:26,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871939049] [2024-11-20 17:19:26,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:26,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:19:26,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:19:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:19:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:19:26,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-20 17:19:26,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:19:26,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:26,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-20 17:19:26,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:27,091 INFO L124 PetriNetUnfolderBase]: 260/572 cut-off events. [2024-11-20 17:19:27,092 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-20 17:19:27,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 572 events. 260/572 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2892 event pairs, 52 based on Foata normal form. 30/592 useless extension candidates. Maximal degree in co-relation 1080. Up to 259 conditions per place. [2024-11-20 17:19:27,097 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 35 selfloop transitions, 4 changer transitions 1/50 dead transitions. [2024-11-20 17:19:27,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 194 flow [2024-11-20 17:19:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:19:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:19:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-20 17:19:27,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6081081081081081 [2024-11-20 17:19:27,099 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 68 flow. Second operand 4 states and 90 transitions. [2024-11-20 17:19:27,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 194 flow [2024-11-20 17:19:27,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 50 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:27,101 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 90 flow [2024-11-20 17:19:27,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-11-20 17:19:27,102 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-11-20 17:19:27,103 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 90 flow [2024-11-20 17:19:27,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:19:27,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:27,103 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:27,108 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 (3)] Ended with exit code 0 [2024-11-20 17:19:27,304 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 [2024-11-20 17:19:27,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:27,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 956621036, now seen corresponding path program 1 times [2024-11-20 17:19:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:27,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015957170] [2024-11-20 17:19:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:27,306 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 [2024-11-20 17:19:27,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:27,310 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2024-11-20 17:19:27,311 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 (4)] Waiting until timeout for monitored process [2024-11-20 17:19:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:27,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:19:27,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:19:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:27,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:19:27,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:19:27,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015957170] [2024-11-20 17:19:27,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015957170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:27,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:27,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:19:27,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854718995] [2024-11-20 17:19:27,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:27,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:19:27,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:19:27,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:19:27,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:19:27,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-20 17:19:27,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-20 17:19:27,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:27,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-20 17:19:27,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:27,643 INFO L124 PetriNetUnfolderBase]: 124/270 cut-off events. [2024-11-20 17:19:27,643 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-20 17:19:27,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 270 events. 124/270 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 952 event pairs, 36 based on Foata normal form. 18/281 useless extension candidates. Maximal degree in co-relation 605. Up to 101 conditions per place. [2024-11-20 17:19:27,646 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 29 selfloop transitions, 6 changer transitions 1/46 dead transitions. [2024-11-20 17:19:27,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 195 flow [2024-11-20 17:19:27,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:19:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:19:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2024-11-20 17:19:27,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5297297297297298 [2024-11-20 17:19:27,648 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 90 flow. Second operand 5 states and 98 transitions. [2024-11-20 17:19:27,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 195 flow [2024-11-20 17:19:27,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 186 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 17:19:27,650 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 106 flow [2024-11-20 17:19:27,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=106, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-20 17:19:27,651 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2024-11-20 17:19:27,651 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 106 flow [2024-11-20 17:19:27,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-20 17:19:27,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:27,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:27,657 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 (4)] Ended with exit code 0 [2024-11-20 17:19:27,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2024-11-20 17:19:27,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:27,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:27,853 INFO L85 PathProgramCache]: Analyzing trace with hash -162737897, now seen corresponding path program 1 times [2024-11-20 17:19:27,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:27,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861538076] [2024-11-20 17:19:27,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:27,854 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 [2024-11-20 17:19:27,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:27,857 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2024-11-20 17:19:27,859 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 (5)] Waiting until timeout for monitored process [2024-11-20 17:19:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:27,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:19:27,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:19:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:28,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:19:28,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:19:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861538076] [2024-11-20 17:19:28,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861538076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:28,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:28,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:19:28,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982600279] [2024-11-20 17:19:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:28,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:19:28,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:19:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:19:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:19:28,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-20 17:19:28,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-20 17:19:28,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:28,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-20 17:19:28,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:28,067 INFO L124 PetriNetUnfolderBase]: 74/192 cut-off events. [2024-11-20 17:19:28,068 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-20 17:19:28,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 192 events. 74/192 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 658 event pairs, 72 based on Foata normal form. 4/185 useless extension candidates. Maximal degree in co-relation 413. Up to 145 conditions per place. [2024-11-20 17:19:28,070 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 15 selfloop transitions, 1 changer transitions 1/31 dead transitions. [2024-11-20 17:19:28,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 138 flow [2024-11-20 17:19:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:19:28,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:19:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-20 17:19:28,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5405405405405406 [2024-11-20 17:19:28,071 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 106 flow. Second operand 3 states and 60 transitions. [2024-11-20 17:19:28,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 138 flow [2024-11-20 17:19:28,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 110 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-20 17:19:28,074 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 76 flow [2024-11-20 17:19:28,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-11-20 17:19:28,074 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-20 17:19:28,075 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 76 flow [2024-11-20 17:19:28,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-20 17:19:28,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:28,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:28,083 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 (5)] Ended with exit code 0 [2024-11-20 17:19:28,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2024-11-20 17:19:28,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:28,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash -162737820, now seen corresponding path program 1 times [2024-11-20 17:19:28,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:28,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116123200] [2024-11-20 17:19:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:19:28,278 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 [2024-11-20 17:19:28,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:28,280 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-11-20 17:19:28,281 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 (6)] Waiting until timeout for monitored process [2024-11-20 17:19:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:19:28,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:19:28,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:19:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:28,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:19:28,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:19:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116123200] [2024-11-20 17:19:28,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116123200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:28,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:28,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 17:19:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566441709] [2024-11-20 17:19:28,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:28,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:19:28,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:19:28,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:19:28,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:19:28,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-20 17:19:28,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2024-11-20 17:19:28,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:28,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-20 17:19:28,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:28,782 INFO L124 PetriNetUnfolderBase]: 145/342 cut-off events. [2024-11-20 17:19:28,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:19:28,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 342 events. 145/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1402 event pairs, 35 based on Foata normal form. 4/339 useless extension candidates. Maximal degree in co-relation 662. Up to 147 conditions per place. [2024-11-20 17:19:28,785 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 21 selfloop transitions, 1 changer transitions 17/50 dead transitions. [2024-11-20 17:19:28,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 50 transitions, 194 flow [2024-11-20 17:19:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:19:28,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:19:28,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-11-20 17:19:28,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5045045045045045 [2024-11-20 17:19:28,786 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 76 flow. Second operand 6 states and 112 transitions. [2024-11-20 17:19:28,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 50 transitions, 194 flow [2024-11-20 17:19:28,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 50 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:19:28,788 INFO L231 Difference]: Finished difference. Result has 46 places, 30 transitions, 86 flow [2024-11-20 17:19:28,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=30} [2024-11-20 17:19:28,789 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2024-11-20 17:19:28,789 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 30 transitions, 86 flow [2024-11-20 17:19:28,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2024-11-20 17:19:28,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:28,791 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:28,796 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 (6)] Forceful destruction successful, exit code 0 [2024-11-20 17:19:28,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2024-11-20 17:19:28,992 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:28,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2038209094, now seen corresponding path program 2 times [2024-11-20 17:19:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:28,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554054043] [2024-11-20 17:19:28,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:19:28,994 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 [2024-11-20 17:19:28,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:28,995 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2024-11-20 17:19:28,997 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 (7)] Waiting until timeout for monitored process [2024-11-20 17:19:29,097 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 17:19:29,097 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:19:29,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-20 17:19:29,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:19:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:19:29,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:19:29,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:19:29,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554054043] [2024-11-20 17:19:29,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554054043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:19:29,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:19:29,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 17:19:29,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934060440] [2024-11-20 17:19:29,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:19:29,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 17:19:29,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:19:29,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 17:19:29,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:19:29,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-20 17:19:29,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 30 transitions, 86 flow. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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) [2024-11-20 17:19:29,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:19:29,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-20 17:19:29,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:19:30,319 INFO L124 PetriNetUnfolderBase]: 106/266 cut-off events. [2024-11-20 17:19:30,319 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 17:19:30,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 266 events. 106/266 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1048 event pairs, 11 based on Foata normal form. 4/262 useless extension candidates. Maximal degree in co-relation 538. Up to 51 conditions per place. [2024-11-20 17:19:30,321 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 23 selfloop transitions, 5 changer transitions 23/64 dead transitions. [2024-11-20 17:19:30,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 64 transitions, 266 flow [2024-11-20 17:19:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:19:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:19:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 192 transitions. [2024-11-20 17:19:30,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.518918918918919 [2024-11-20 17:19:30,323 INFO L175 Difference]: Start difference. First operand has 46 places, 30 transitions, 86 flow. Second operand 10 states and 192 transitions. [2024-11-20 17:19:30,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 64 transitions, 266 flow [2024-11-20 17:19:30,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 255 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-20 17:19:30,328 INFO L231 Difference]: Finished difference. Result has 52 places, 30 transitions, 99 flow [2024-11-20 17:19:30,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=99, PETRI_PLACES=52, PETRI_TRANSITIONS=30} [2024-11-20 17:19:30,329 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 12 predicate places. [2024-11-20 17:19:30,331 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 30 transitions, 99 flow [2024-11-20 17:19:30,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 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) [2024-11-20 17:19:30,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:19:30,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:19:30,337 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 (7)] Forceful destruction successful, exit code 0 [2024-11-20 17:19:30,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2024-11-20 17:19:30,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-20 17:19:30,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:19:30,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1140286222, now seen corresponding path program 3 times [2024-11-20 17:19:30,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:19:30,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089800921] [2024-11-20 17:19:30,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:19:30,534 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 [2024-11-20 17:19:30,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:19:30,535 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2024-11-20 17:19:30,536 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 (8)] Waiting until timeout for monitored process [2024-11-20 17:19:30,624 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-20 17:19:30,624 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-20 17:19:30,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:19:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:19:30,724 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-20 17:19:30,724 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:19:30,725 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-20 17:19:30,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-20 17:19:30,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-20 17:19:30,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-20 17:19:30,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-20 17:19:30,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-20 17:19:30,733 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 (8)] Forceful destruction successful, exit code 0 [2024-11-20 17:19:30,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2024-11-20 17:19:30,928 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-20 17:19:31,007 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:19:31,007 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:19:31,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:19:31 BasicIcfg [2024-11-20 17:19:31,016 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:19:31,017 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:19:31,017 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:19:31,018 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:19:31,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:19:25" (3/4) ... [2024-11-20 17:19:31,020 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 17:19:31,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:19:31,022 INFO L158 Benchmark]: Toolchain (without parser) took 6946.65ms. Allocated memory was 62.9MB in the beginning and 159.4MB in the end (delta: 96.5MB). Free memory was 30.2MB in the beginning and 56.4MB in the end (delta: -26.2MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2024-11-20 17:19:31,022 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 48.2MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:19:31,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.10ms. Allocated memory is still 62.9MB. Free memory was 30.0MB in the beginning and 36.6MB in the end (delta: -6.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-11-20 17:19:31,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.82ms. Allocated memory is still 62.9MB. Free memory was 36.6MB in the beginning and 33.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:19:31,025 INFO L158 Benchmark]: Boogie Preprocessor took 82.49ms. Allocated memory is still 62.9MB. Free memory was 33.9MB in the beginning and 30.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:19:31,025 INFO L158 Benchmark]: RCFGBuilder took 899.26ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 30.3MB in the beginning and 46.9MB in the end (delta: -16.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2024-11-20 17:19:31,025 INFO L158 Benchmark]: TraceAbstraction took 5260.95ms. Allocated memory was 81.8MB in the beginning and 159.4MB in the end (delta: 77.6MB). Free memory was 46.3MB in the beginning and 56.4MB in the end (delta: -10.1MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2024-11-20 17:19:31,026 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 159.4MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:19:31,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 48.2MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.10ms. Allocated memory is still 62.9MB. Free memory was 30.0MB in the beginning and 36.6MB in the end (delta: -6.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.82ms. Allocated memory is still 62.9MB. Free memory was 36.6MB in the beginning and 33.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.49ms. Allocated memory is still 62.9MB. Free memory was 33.9MB in the beginning and 30.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 899.26ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 30.3MB in the beginning and 46.9MB in the end (delta: -16.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5260.95ms. Allocated memory was 81.8MB in the beginning and 159.4MB in the end (delta: 77.6MB). Free memory was 46.3MB in the beginning and 56.4MB in the end (delta: -10.1MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 159.4MB. Free memory is still 56.4MB. 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_p0_EBX = 0; [L715] 0 int __unbuffered_p1_EAX = 0; [L717] 0 int __unbuffered_p1_EBX = 0; [L718] 0 _Bool main$tmp_guard0; [L719] 0 _Bool main$tmp_guard1; [L721] 0 int x = 0; [L723] 0 int y = 0; [L724] 0 _Bool y$flush_delayed; [L725] 0 int y$mem_tmp; [L726] 0 _Bool y$r_buff0_thd0; [L727] 0 _Bool y$r_buff0_thd1; [L728] 0 _Bool y$r_buff0_thd2; [L729] 0 _Bool y$r_buff1_thd0; [L730] 0 _Bool y$r_buff1_thd1; [L731] 0 _Bool y$r_buff1_thd2; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L831] 0 pthread_t t0; [L832] FCALL, FORK 0 pthread_create(&t0, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t0=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] [L833] 0 pthread_t t1; [L834] FCALL, FORK 0 pthread_create(&t1, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t0=0, t1=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] [L743] 1 y$w_buff1 = y$w_buff0 [L744] 1 y$w_buff0 = 1 [L745] 1 y$w_buff1_used = y$w_buff0_used [L746] 1 y$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L748] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L749] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L750] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L751] 1 y$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$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=1, 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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L754] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L755] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L756] 1 y$flush_delayed = weak$$choice2 [L757] 1 y$mem_tmp = y [L758] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L759] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L760] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L761] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L762] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L763] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L764] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L765] 1 __unbuffered_p0_EAX = y [L766] 1 y = y$flush_delayed ? y$mem_tmp : y [L767] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L770] 1 __unbuffered_p0_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L787] 2 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L790] 2 __unbuffered_p1_EAX = x VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L793] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L794] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L795] 2 y$flush_delayed = weak$$choice2 [L796] 2 y$mem_tmp = y [L797] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L798] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L799] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L800] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L801] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L802] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L803] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L804] 2 __unbuffered_p1_EBX = y [L805] 2 y = y$flush_delayed ? y$mem_tmp : y [L806] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L809] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L810] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L811] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L812] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L813] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L773] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L774] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L775] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L776] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L777] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L780] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L816] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L836] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t0=0, t1=1, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L838] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L838] RET 0 assume_abort_if_not(main$tmp_guard0) [L840] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L841] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L842] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L843] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L844] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t0=0, t1=1, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L847] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t0=0, t1=1, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L849] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L18] 0 __assert_fail ("0", "mix000.oepc.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - 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: 829]: 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 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: 834]: 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, 55 locations, 6 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: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 663 IncrementalHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1 mSDtfsCounter, 663 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=3, InterpolantAutomatonStates: 31, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 12 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2024-11-20 17:19:31,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample