./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/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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 5b81d744fec4d4b48b220b63eb6337c45e4be951600681981b2881c9432ed2ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:01:02,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:01:02,114 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:01:02,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:01:02,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:01:02,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:01:02,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:01:02,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:01:02,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:01:02,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:01:02,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:01:02,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:01:02,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:01:02,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:01:02,162 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:01:02,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:01:02,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:01:02,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:01:02,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:01:02,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:01:02,168 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:01:02,169 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:01:02,169 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:01:02,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:01:02,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:01:02,173 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:01:02,173 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:01:02,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:01:02,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:01:02,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:01:02,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:01:02,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:01:02,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:01:02,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:01:02,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:01:02,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:01:02,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:01:02,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:01:02,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:01:02,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:01:02,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:01:02,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:01:02,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b81d744fec4d4b48b220b63eb6337c45e4be951600681981b2881c9432ed2ae [2024-10-24 19:01:02,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:01:02,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:01:02,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:01:02,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:01:02,473 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:01:02,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 19:01:03,943 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:01:04,185 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:01:04,186 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 19:01:04,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a1174f4/e28b7d1fd64e49aabb9c4108abeecad4/FLAG82ea10beb [2024-10-24 19:01:04,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a1174f4/e28b7d1fd64e49aabb9c4108abeecad4 [2024-10-24 19:01:04,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:01:04,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:01:04,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:01:04,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:01:04,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:01:04,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294b51bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04, skipping insertion in model container [2024-10-24 19:01:04,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:01:04,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:01:04,597 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:01:04,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:01:04,687 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:01:04,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04 WrapperNode [2024-10-24 19:01:04,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:01:04,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:01:04,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:01:04,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:01:04,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,753 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 115 [2024-10-24 19:01:04,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:01:04,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:01:04,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:01:04,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:01:04,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,778 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,808 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]. [2024-10-24 19:01:04,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:01:04,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:01:04,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:01:04,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:01:04,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (1/1) ... [2024-10-24 19:01:04,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:01:04,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:01:04,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:01:04,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:01:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:01:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:01:04,993 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:01:04,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:01:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:01:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:01:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:01:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:01:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:01:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:01:04,996 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:01:05,120 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:01:05,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:01:05,349 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:01:05,349 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:01:05,492 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:01:05,493 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:01:05,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:01:05 BoogieIcfgContainer [2024-10-24 19:01:05,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:01:05,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:01:05,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:01:05,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:01:05,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:01:04" (1/3) ... [2024-10-24 19:01:05,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b38fdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:01:05, skipping insertion in model container [2024-10-24 19:01:05,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:04" (2/3) ... [2024-10-24 19:01:05,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b38fdd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:01:05, skipping insertion in model container [2024-10-24 19:01:05,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:01:05" (3/3) ... [2024-10-24 19:01:05,501 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 19:01:05,514 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:01:05,514 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 19:01:05,515 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:01:05,549 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:01:05,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 38 transitions, 84 flow [2024-10-24 19:01:05,602 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-10-24 19:01:05,603 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:05,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 36 events. 2/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-10-24 19:01:05,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 38 transitions, 84 flow [2024-10-24 19:01:05,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 36 transitions, 78 flow [2024-10-24 19:01:05,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:01:05,628 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;@73a5049a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:01:05,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:01:05,636 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:01:05,637 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-24 19:01:05,637 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:05,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:05,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 19:01:05,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:05,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1606187755, now seen corresponding path program 1 times [2024-10-24 19:01:05,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:05,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856267185] [2024-10-24 19:01:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:06,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:06,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856267185] [2024-10-24 19:01:06,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856267185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:06,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:06,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:01:06,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563184467] [2024-10-24 19:01:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:06,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:01:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:06,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:01:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:01:06,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-10-24 19:01:06,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:06,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-10-24 19:01:06,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:06,224 INFO L124 PetriNetUnfolderBase]: 129/354 cut-off events. [2024-10-24 19:01:06,225 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:06,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 354 events. 129/354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2062 event pairs, 18 based on Foata normal form. 24/370 useless extension candidates. Maximal degree in co-relation 588. Up to 184 conditions per place. [2024-10-24 19:01:06,228 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 21 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2024-10-24 19:01:06,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 138 flow [2024-10-24 19:01:06,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:01:06,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:01:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-10-24 19:01:06,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2024-10-24 19:01:06,239 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 78 flow. Second operand 3 states and 84 transitions. [2024-10-24 19:01:06,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 138 flow [2024-10-24 19:01:06,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 41 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:01:06,243 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2024-10-24 19:01:06,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2024-10-24 19:01:06,247 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2024-10-24 19:01:06,247 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2024-10-24 19:01:06,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:06,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:06,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:01:06,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:06,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:06,249 INFO L85 PathProgramCache]: Analyzing trace with hash 255726720, now seen corresponding path program 1 times [2024-10-24 19:01:06,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:06,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571312803] [2024-10-24 19:01:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:06,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:06,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571312803] [2024-10-24 19:01:06,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571312803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:06,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:06,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:01:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428697241] [2024-10-24 19:01:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:06,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:01:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:01:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:01:06,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 38 [2024-10-24 19:01:06,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:06,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 38 [2024-10-24 19:01:06,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:06,390 INFO L124 PetriNetUnfolderBase]: 112/283 cut-off events. [2024-10-24 19:01:06,390 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-24 19:01:06,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 283 events. 112/283 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1599 event pairs, 112 based on Foata normal form. 12/278 useless extension candidates. Maximal degree in co-relation 509. Up to 203 conditions per place. [2024-10-24 19:01:06,393 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 13 selfloop transitions, 1 changer transitions 1/30 dead transitions. [2024-10-24 19:01:06,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 98 flow [2024-10-24 19:01:06,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:01:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:01:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-24 19:01:06,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5877192982456141 [2024-10-24 19:01:06,395 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 3 states and 67 transitions. [2024-10-24 19:01:06,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 98 flow [2024-10-24 19:01:06,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:01:06,397 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 64 flow [2024-10-24 19:01:06,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-10-24 19:01:06,397 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -4 predicate places. [2024-10-24 19:01:06,398 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 64 flow [2024-10-24 19:01:06,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:06,399 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:06,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:01:06,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:06,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash 255726796, now seen corresponding path program 1 times [2024-10-24 19:01:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712997327] [2024-10-24 19:01:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:06,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:06,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712997327] [2024-10-24 19:01:06,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712997327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:06,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:06,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:01:06,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597211260] [2024-10-24 19:01:06,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:06,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:01:06,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:01:06,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:01:06,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 19:01:06,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:06,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 19:01:06,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:06,691 INFO L124 PetriNetUnfolderBase]: 161/368 cut-off events. [2024-10-24 19:01:06,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:06,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 368 events. 161/368 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1858 event pairs, 24 based on Foata normal form. 20/377 useless extension candidates. Maximal degree in co-relation 676. Up to 166 conditions per place. [2024-10-24 19:01:06,693 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 28 selfloop transitions, 4 changer transitions 1/45 dead transitions. [2024-10-24 19:01:06,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 45 transitions, 164 flow [2024-10-24 19:01:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:01:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:01:06,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-10-24 19:01:06,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-24 19:01:06,695 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 64 flow. Second operand 4 states and 95 transitions. [2024-10-24 19:01:06,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 45 transitions, 164 flow [2024-10-24 19:01:06,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:01:06,696 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 89 flow [2024-10-24 19:01:06,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=89, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-10-24 19:01:06,697 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-10-24 19:01:06,697 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 89 flow [2024-10-24 19:01:06,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:06,697 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:06,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:01:06,698 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:06,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:06,698 INFO L85 PathProgramCache]: Analyzing trace with hash -153727061, now seen corresponding path program 1 times [2024-10-24 19:01:06,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:06,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712080517] [2024-10-24 19:01:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:06,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:06,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:06,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712080517] [2024-10-24 19:01:06,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712080517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:06,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:06,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:01:06,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557096646] [2024-10-24 19:01:06,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:06,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:01:06,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:06,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:01:06,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:01:06,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 19:01:06,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:06,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 19:01:06,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:07,005 INFO L124 PetriNetUnfolderBase]: 84/195 cut-off events. [2024-10-24 19:01:07,005 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-10-24 19:01:07,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 195 events. 84/195 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 668 event pairs, 16 based on Foata normal form. 14/200 useless extension candidates. Maximal degree in co-relation 442. Up to 71 conditions per place. [2024-10-24 19:01:07,007 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 24 selfloop transitions, 6 changer transitions 1/43 dead transitions. [2024-10-24 19:01:07,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 180 flow [2024-10-24 19:01:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:01:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:01:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-10-24 19:01:07,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2024-10-24 19:01:07,010 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 89 flow. Second operand 5 states and 108 transitions. [2024-10-24 19:01:07,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 180 flow [2024-10-24 19:01:07,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 171 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-24 19:01:07,012 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 105 flow [2024-10-24 19:01:07,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=105, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2024-10-24 19:01:07,013 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-10-24 19:01:07,014 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 105 flow [2024-10-24 19:01:07,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:07,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:07,014 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, 1] [2024-10-24 19:01:07,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:01:07,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:07,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash 210563934, now seen corresponding path program 1 times [2024-10-24 19:01:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:07,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860617240] [2024-10-24 19:01:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:07,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:07,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:07,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860617240] [2024-10-24 19:01:07,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860617240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:07,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:07,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:01:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857272501] [2024-10-24 19:01:07,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:07,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:01:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:01:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:01:07,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 19:01:07,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:07,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:07,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 19:01:07,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:07,403 INFO L124 PetriNetUnfolderBase]: 108/286 cut-off events. [2024-10-24 19:01:07,403 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-10-24 19:01:07,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 286 events. 108/286 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1232 event pairs, 55 based on Foata normal form. 4/276 useless extension candidates. Maximal degree in co-relation 602. Up to 127 conditions per place. [2024-10-24 19:01:07,405 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 18 selfloop transitions, 2 changer transitions 11/45 dead transitions. [2024-10-24 19:01:07,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 201 flow [2024-10-24 19:01:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:01:07,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:01:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-10-24 19:01:07,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5631578947368421 [2024-10-24 19:01:07,406 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 105 flow. Second operand 5 states and 107 transitions. [2024-10-24 19:01:07,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 201 flow [2024-10-24 19:01:07,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 167 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-24 19:01:07,412 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 89 flow [2024-10-24 19:01:07,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, 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=5, PETRI_FLOW=89, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2024-10-24 19:01:07,412 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-10-24 19:01:07,412 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 89 flow [2024-10-24 19:01:07,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:07,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:07,413 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, 1] [2024-10-24 19:01:07,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:01:07,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:07,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1188297130, now seen corresponding path program 2 times [2024-10-24 19:01:07,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:07,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846868453] [2024-10-24 19:01:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:07,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:08,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:08,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:08,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846868453] [2024-10-24 19:01:08,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846868453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:08,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:08,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 19:01:08,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923618464] [2024-10-24 19:01:08,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:08,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 19:01:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:08,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 19:01:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 19:01:08,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 38 [2024-10-24 19:01:08,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 31 transitions, 89 flow. Second operand has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:08,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:08,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 38 [2024-10-24 19:01:08,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:08,282 INFO L124 PetriNetUnfolderBase]: 65/187 cut-off events. [2024-10-24 19:01:08,282 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 19:01:08,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 187 events. 65/187 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 657 event pairs, 8 based on Foata normal form. 4/184 useless extension candidates. Maximal degree in co-relation 365. Up to 37 conditions per place. [2024-10-24 19:01:08,283 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 16 selfloop transitions, 4 changer transitions 14/50 dead transitions. [2024-10-24 19:01:08,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 199 flow [2024-10-24 19:01:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:01:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:01:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 188 transitions. [2024-10-24 19:01:08,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5497076023391813 [2024-10-24 19:01:08,285 INFO L175 Difference]: Start difference. First operand has 45 places, 31 transitions, 89 flow. Second operand 9 states and 188 transitions. [2024-10-24 19:01:08,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 199 flow [2024-10-24 19:01:08,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 185 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 19:01:08,287 INFO L231 Difference]: Finished difference. Result has 51 places, 31 transitions, 97 flow [2024-10-24 19:01:08,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=97, PETRI_PLACES=51, PETRI_TRANSITIONS=31} [2024-10-24 19:01:08,287 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2024-10-24 19:01:08,287 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 31 transitions, 97 flow [2024-10-24 19:01:08,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:08,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:08,288 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, 1] [2024-10-24 19:01:08,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:01:08,288 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:08,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1066881696, now seen corresponding path program 3 times [2024-10-24 19:01:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:08,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930029494] [2024-10-24 19:01:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:08,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:08,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:08,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930029494] [2024-10-24 19:01:08,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930029494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:08,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:08,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:01:08,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097537640] [2024-10-24 19:01:08,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:08,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:01:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:08,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:01:08,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:01:08,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-10-24 19:01:08,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 31 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:08,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:08,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-10-24 19:01:08,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:08,707 INFO L124 PetriNetUnfolderBase]: 105/270 cut-off events. [2024-10-24 19:01:08,708 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-10-24 19:01:08,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 270 events. 105/270 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1078 event pairs, 42 based on Foata normal form. 4/261 useless extension candidates. Maximal degree in co-relation 570. Up to 100 conditions per place. [2024-10-24 19:01:08,709 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 20 selfloop transitions, 5 changer transitions 13/50 dead transitions. [2024-10-24 19:01:08,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 226 flow [2024-10-24 19:01:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:01:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:01:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 130 transitions. [2024-10-24 19:01:08,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48872180451127817 [2024-10-24 19:01:08,711 INFO L175 Difference]: Start difference. First operand has 51 places, 31 transitions, 97 flow. Second operand 7 states and 130 transitions. [2024-10-24 19:01:08,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 226 flow [2024-10-24 19:01:08,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 202 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-10-24 19:01:08,712 INFO L231 Difference]: Finished difference. Result has 50 places, 34 transitions, 120 flow [2024-10-24 19:01:08,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=120, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2024-10-24 19:01:08,713 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2024-10-24 19:01:08,713 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 120 flow [2024-10-24 19:01:08,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:08,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:08,714 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, 1] [2024-10-24 19:01:08,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:01:08,714 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:08,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:08,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2015636892, now seen corresponding path program 4 times [2024-10-24 19:01:08,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345627232] [2024-10-24 19:01:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:08,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:01:08,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:01:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:01:08,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 19:01:08,826 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:01:08,827 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-24 19:01:08,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-24 19:01:08,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-10-24 19:01:08,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 19:01:08,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 19:01:08,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-10-24 19:01:08,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:01:08,830 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-10-24 19:01:08,880 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:01:08,880 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:01:08,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:01:08 BasicIcfg [2024-10-24 19:01:08,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:01:08,885 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:01:08,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:01:08,886 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:01:08,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:01:05" (3/4) ... [2024-10-24 19:01:08,888 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 19:01:08,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:01:08,890 INFO L158 Benchmark]: Toolchain (without parser) took 4677.75ms. Allocated memory was 151.0MB in the beginning and 331.4MB in the end (delta: 180.4MB). Free memory was 97.5MB in the beginning and 203.2MB in the end (delta: -105.7MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2024-10-24 19:01:08,890 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory was 116.3MB in the beginning and 116.3MB in the end (delta: 23.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:01:08,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.56ms. Allocated memory is still 151.0MB. Free memory was 97.1MB in the beginning and 72.8MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-24 19:01:08,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.08ms. Allocated memory is still 151.0MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:01:08,891 INFO L158 Benchmark]: Boogie Preprocessor took 91.64ms. Allocated memory was 151.0MB in the beginning and 253.8MB in the end (delta: 102.8MB). Free memory was 70.3MB in the beginning and 223.5MB in the end (delta: -153.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2024-10-24 19:01:08,891 INFO L158 Benchmark]: RCFGBuilder took 643.12ms. Allocated memory is still 253.8MB. Free memory was 223.5MB in the beginning and 180.1MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-10-24 19:01:08,891 INFO L158 Benchmark]: TraceAbstraction took 3389.77ms. Allocated memory was 253.8MB in the beginning and 331.4MB in the end (delta: 77.6MB). Free memory was 179.1MB in the beginning and 204.3MB in the end (delta: -25.2MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2024-10-24 19:01:08,892 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 331.4MB. Free memory is still 203.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:01:08,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory was 116.3MB in the beginning and 116.3MB in the end (delta: 23.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.56ms. Allocated memory is still 151.0MB. Free memory was 97.1MB in the beginning and 72.8MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.08ms. Allocated memory is still 151.0MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.64ms. Allocated memory was 151.0MB in the beginning and 253.8MB in the end (delta: 102.8MB). Free memory was 70.3MB in the beginning and 223.5MB in the end (delta: -153.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * RCFGBuilder took 643.12ms. Allocated memory is still 253.8MB. Free memory was 223.5MB in the beginning and 180.1MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3389.77ms. Allocated memory was 253.8MB in the beginning and 331.4MB in the end (delta: 77.6MB). Free memory was 179.1MB in the beginning and 204.3MB in the end (delta: -25.2MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 331.4MB. Free memory is still 203.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L720] 0 _Bool x$flush_delayed; [L721] 0 int x$mem_tmp; [L722] 0 _Bool x$r_buff0_thd0; [L723] 0 _Bool x$r_buff0_thd1; [L724] 0 _Bool x$r_buff0_thd2; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1633; [L814] FCALL, FORK 0 pthread_create(&t1633, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1633=-2, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L815] 0 pthread_t t1634; [L816] FCALL, FORK 0 pthread_create(&t1634, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1633=-2, t1634=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L782] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L785] 2 __unbuffered_p1_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=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$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L788] 2 __unbuffered_p1_EBX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L741] 1 y = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1633=-2, t1634=-1, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1633=-2, t1634=-1, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1633=-2, t1634=-1, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L18] 0 __assert_fail ("0", "rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] - 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: 811]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 816]: 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: 814]: 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, 57 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: 3.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 13 mSDtfsCounter, 518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=7, InterpolantAutomatonStates: 36, 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, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 19:01:08,932 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/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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 5b81d744fec4d4b48b220b63eb6337c45e4be951600681981b2881c9432ed2ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:01:11,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:01:11,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 19:01:11,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:01:11,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:01:11,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:01:11,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:01:11,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:01:11,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:01:11,433 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:01:11,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:01:11,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:01:11,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:01:11,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:01:11,434 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:01:11,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:01:11,435 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:01:11,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:01:11,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:01:11,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:01:11,436 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:01:11,436 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:01:11,436 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:01:11,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:01:11,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:01:11,437 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 19:01:11,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:01:11,437 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 19:01:11,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:01:11,438 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:01:11,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:01:11,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:01:11,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:01:11,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:01:11,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:01:11,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:01:11,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:01:11,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:01:11,448 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 19:01:11,448 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 19:01:11,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:01:11,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:01:11,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:01:11,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:01:11,449 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 19:01:11,449 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 -> 5b81d744fec4d4b48b220b63eb6337c45e4be951600681981b2881c9432ed2ae [2024-10-24 19:01:11,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:01:11,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:01:11,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:01:11,771 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:01:11,775 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:01:11,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 19:01:13,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:01:13,516 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:01:13,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 19:01:13,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3f3178d/7fd796dcd11b4b3ba960e83d2475e565/FLAG1b5706300 [2024-10-24 19:01:13,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3f3178d/7fd796dcd11b4b3ba960e83d2475e565 [2024-10-24 19:01:13,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:01:13,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:01:13,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:01:13,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:01:13,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:01:13,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:01:13" (1/1) ... [2024-10-24 19:01:13,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c39bf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:13, skipping insertion in model container [2024-10-24 19:01:13,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:01:13" (1/1) ... [2024-10-24 19:01:13,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:01:13,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:01:13,943 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:01:13,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:01:14,043 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:01:14,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14 WrapperNode [2024-10-24 19:01:14,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:01:14,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:01:14,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:01:14,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:01:14,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,095 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 116 [2024-10-24 19:01:14,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:01:14,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:01:14,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:01:14,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:01:14,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,141 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]. [2024-10-24 19:01:14,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:01:14,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:01:14,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:01:14,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:01:14,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (1/1) ... [2024-10-24 19:01:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:01:14,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:01:14,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:01:14,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:01:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:01:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:01:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 19:01:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:01:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:01:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:01:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:01:14,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:01:14,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:01:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:01:14,261 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:01:14,527 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:01:14,534 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:01:14,795 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:01:14,795 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:01:14,951 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:01:14,953 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:01:14,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:01:14 BoogieIcfgContainer [2024-10-24 19:01:14,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:01:14,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:01:14,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:01:14,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:01:14,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:01:13" (1/3) ... [2024-10-24 19:01:14,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a5dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:01:14, skipping insertion in model container [2024-10-24 19:01:14,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:01:14" (2/3) ... [2024-10-24 19:01:14,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a5dc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:01:14, skipping insertion in model container [2024-10-24 19:01:14,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:01:14" (3/3) ... [2024-10-24 19:01:14,963 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 19:01:14,975 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:01:14,975 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 19:01:14,975 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:01:15,011 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:01:15,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 38 transitions, 84 flow [2024-10-24 19:01:15,077 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-10-24 19:01:15,077 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:15,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 36 events. 2/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-10-24 19:01:15,082 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 38 transitions, 84 flow [2024-10-24 19:01:15,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 36 transitions, 78 flow [2024-10-24 19:01:15,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:01:15,099 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;@3c5e82c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:01:15,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:01:15,106 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:01:15,107 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-24 19:01:15,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:15,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:15,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 19:01:15,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:15,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1665354667, now seen corresponding path program 1 times [2024-10-24 19:01:15,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:01:15,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736001943] [2024-10-24 19:01:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:15,122 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 [2024-10-24 19:01:15,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:01:15,127 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) [2024-10-24 19:01:15,128 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 [2024-10-24 19:01:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:15,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:01:15,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:01:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:15,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:01:15,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:01:15,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736001943] [2024-10-24 19:01:15,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736001943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:15,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:15,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:01:15,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513066235] [2024-10-24 19:01:15,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:15,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:01:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:01:15,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:01:15,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:01:15,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-10-24 19:01:15,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:15,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:15,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-10-24 19:01:15,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:15,386 INFO L124 PetriNetUnfolderBase]: 129/354 cut-off events. [2024-10-24 19:01:15,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:15,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 354 events. 129/354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2062 event pairs, 18 based on Foata normal form. 24/370 useless extension candidates. Maximal degree in co-relation 588. Up to 184 conditions per place. [2024-10-24 19:01:15,390 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 21 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2024-10-24 19:01:15,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 138 flow [2024-10-24 19:01:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:01:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:01:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-10-24 19:01:15,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2024-10-24 19:01:15,427 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 78 flow. Second operand 3 states and 84 transitions. [2024-10-24 19:01:15,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 138 flow [2024-10-24 19:01:15,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 41 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:01:15,430 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2024-10-24 19:01:15,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2024-10-24 19:01:15,435 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2024-10-24 19:01:15,435 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2024-10-24 19:01:15,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:15,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:15,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:15,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 19:01:15,638 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 [2024-10-24 19:01:15,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:15,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1940009730, now seen corresponding path program 1 times [2024-10-24 19:01:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:01:15,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709306622] [2024-10-24 19:01:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:15,640 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 [2024-10-24 19:01:15,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:01:15,643 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) [2024-10-24 19:01:15,643 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 [2024-10-24 19:01:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:15,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:01:15,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:01:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:15,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:01:15,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:01:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709306622] [2024-10-24 19:01:15,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709306622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:15,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:15,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:01:15,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771118630] [2024-10-24 19:01:15,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:15,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:01:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:01:15,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:01:15,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:01:15,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 19:01:15,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:15,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:15,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 19:01:15,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:15,851 INFO L124 PetriNetUnfolderBase]: 180/415 cut-off events. [2024-10-24 19:01:15,851 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-24 19:01:15,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 415 events. 180/415 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2189 event pairs, 24 based on Foata normal form. 20/424 useless extension candidates. Maximal degree in co-relation 776. Up to 199 conditions per place. [2024-10-24 19:01:15,854 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 29 selfloop transitions, 4 changer transitions 1/47 dead transitions. [2024-10-24 19:01:15,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 176 flow [2024-10-24 19:01:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:01:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:01:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2024-10-24 19:01:15,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-10-24 19:01:15,856 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 4 states and 96 transitions. [2024-10-24 19:01:15,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 176 flow [2024-10-24 19:01:15,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:01:15,859 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 92 flow [2024-10-24 19:01:15,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, 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=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-10-24 19:01:15,860 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-10-24 19:01:15,860 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 92 flow [2024-10-24 19:01:15,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:15,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:15,861 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:15,869 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 [2024-10-24 19:01:16,061 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 [2024-10-24 19:01:16,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:16,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:16,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1537004833, now seen corresponding path program 1 times [2024-10-24 19:01:16,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:01:16,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445324056] [2024-10-24 19:01:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:16,064 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 [2024-10-24 19:01:16,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:01:16,070 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) [2024-10-24 19:01:16,075 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 [2024-10-24 19:01:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:16,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 19:01:16,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:01:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:16,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:01:16,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:01:16,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445324056] [2024-10-24 19:01:16,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445324056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:16,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:01:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556836393] [2024-10-24 19:01:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:16,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:01:16,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:01:16,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:01:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:01:16,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 19:01:16,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:16,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:16,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 19:01:16,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:16,300 INFO L124 PetriNetUnfolderBase]: 88/207 cut-off events. [2024-10-24 19:01:16,301 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-10-24 19:01:16,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 207 events. 88/207 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 731 event pairs, 16 based on Foata normal form. 14/212 useless extension candidates. Maximal degree in co-relation 458. Up to 71 conditions per place. [2024-10-24 19:01:16,303 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 25 selfloop transitions, 6 changer transitions 1/45 dead transitions. [2024-10-24 19:01:16,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 185 flow [2024-10-24 19:01:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:01:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:01:16,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-10-24 19:01:16,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5736842105263158 [2024-10-24 19:01:16,305 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 92 flow. Second operand 5 states and 109 transitions. [2024-10-24 19:01:16,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 185 flow [2024-10-24 19:01:16,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 176 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-24 19:01:16,306 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 108 flow [2024-10-24 19:01:16,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2024-10-24 19:01:16,307 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-10-24 19:01:16,307 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 108 flow [2024-10-24 19:01:16,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:16,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:16,308 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, 1] [2024-10-24 19:01:16,312 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 (4)] Forceful destruction successful, exit code 0 [2024-10-24 19:01:16,508 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 [2024-10-24 19:01:16,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:16,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:16,510 INFO L85 PathProgramCache]: Analyzing trace with hash -11659694, now seen corresponding path program 1 times [2024-10-24 19:01:16,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:01:16,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154001425] [2024-10-24 19:01:16,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:16,511 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 [2024-10-24 19:01:16,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:01:16,513 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) [2024-10-24 19:01:16,515 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 [2024-10-24 19:01:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:16,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 19:01:16,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:01:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:16,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:01:16,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:01:16,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154001425] [2024-10-24 19:01:16,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154001425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:16,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:16,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:01:16,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925560816] [2024-10-24 19:01:16,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:16,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:01:16,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:01:16,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:01:16,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:01:16,618 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 38 [2024-10-24 19:01:16,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:16,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:16,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 38 [2024-10-24 19:01:16,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:16,654 INFO L124 PetriNetUnfolderBase]: 49/143 cut-off events. [2024-10-24 19:01:16,654 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-24 19:01:16,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 143 events. 49/143 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 478 event pairs, 48 based on Foata normal form. 4/132 useless extension candidates. Maximal degree in co-relation 284. Up to 101 conditions per place. [2024-10-24 19:01:16,656 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 13 selfloop transitions, 1 changer transitions 1/32 dead transitions. [2024-10-24 19:01:16,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 136 flow [2024-10-24 19:01:16,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:01:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:01:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-24 19:01:16,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5877192982456141 [2024-10-24 19:01:16,657 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 108 flow. Second operand 3 states and 67 transitions. [2024-10-24 19:01:16,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 136 flow [2024-10-24 19:01:16,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 108 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-24 19:01:16,659 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 78 flow [2024-10-24 19:01:16,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-10-24 19:01:16,660 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-10-24 19:01:16,660 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 78 flow [2024-10-24 19:01:16,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:16,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:16,660 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, 1] [2024-10-24 19:01:16,666 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 (5)] Forceful destruction successful, exit code 0 [2024-10-24 19:01:16,864 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 [2024-10-24 19:01:16,864 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:16,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -11659618, now seen corresponding path program 1 times [2024-10-24 19:01:16,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:01:16,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396749818] [2024-10-24 19:01:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:16,866 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 [2024-10-24 19:01:16,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:01:16,867 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) [2024-10-24 19:01:16,868 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 [2024-10-24 19:01:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:16,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:01:16,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:01:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:01:16,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:01:16,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:01:16,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396749818] [2024-10-24 19:01:16,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396749818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:16,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:16,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:01:16,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451501979] [2024-10-24 19:01:16,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:16,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:01:16,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:01:16,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:01:16,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:01:16,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 19:01:16,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:16,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:16,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 19:01:16,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:17,090 INFO L124 PetriNetUnfolderBase]: 106/281 cut-off events. [2024-10-24 19:01:17,091 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:01:17,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 281 events. 106/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1174 event pairs, 61 based on Foata normal form. 4/273 useless extension candidates. Maximal degree in co-relation 523. Up to 127 conditions per place. [2024-10-24 19:01:17,093 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 18 selfloop transitions, 2 changer transitions 11/45 dead transitions. [2024-10-24 19:01:17,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 168 flow [2024-10-24 19:01:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:01:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:01:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-10-24 19:01:17,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5631578947368421 [2024-10-24 19:01:17,094 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 78 flow. Second operand 5 states and 107 transitions. [2024-10-24 19:01:17,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 168 flow [2024-10-24 19:01:17,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 167 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:01:17,095 INFO L231 Difference]: Finished difference. Result has 45 places, 31 transitions, 89 flow [2024-10-24 19:01:17,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, 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=5, PETRI_FLOW=89, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2024-10-24 19:01:17,096 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-10-24 19:01:17,096 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 31 transitions, 89 flow [2024-10-24 19:01:17,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:17,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:17,098 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, 1] [2024-10-24 19:01:17,102 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 (6)] Ended with exit code 0 [2024-10-24 19:01:17,301 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 [2024-10-24 19:01:17,302 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-10-24 19:01:17,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1364093606, now seen corresponding path program 2 times [2024-10-24 19:01:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:01:17,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871996271] [2024-10-24 19:01:17,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:01:17,303 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 [2024-10-24 19:01:17,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:01:17,306 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) [2024-10-24 19:01:17,308 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 [2024-10-24 19:01:17,373 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 19:01:17,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-10-24 19:01:17,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:01:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:01:17,465 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 19:01:17,466 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:01:17,466 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-24 19:01:17,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-24 19:01:17,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-10-24 19:01:17,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 19:01:17,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 19:01:17,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-10-24 19:01:17,476 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 (7)] Ended with exit code 0 [2024-10-24 19:01:17,672 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 [2024-10-24 19:01:17,672 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-10-24 19:01:17,737 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:01:17,737 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:01:17,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:01:17 BasicIcfg [2024-10-24 19:01:17,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:01:17,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:01:17,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:01:17,745 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:01:17,746 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:01:14" (3/4) ... [2024-10-24 19:01:17,747 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 19:01:17,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:01:17,748 INFO L158 Benchmark]: Toolchain (without parser) took 4197.41ms. Allocated memory was 75.5MB in the beginning and 138.4MB in the end (delta: 62.9MB). Free memory was 51.7MB in the beginning and 66.5MB in the end (delta: -14.8MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2024-10-24 19:01:17,752 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 75.5MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:01:17,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.61ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 51.6MB in the beginning and 74.4MB in the end (delta: -22.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-10-24 19:01:17,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.58ms. Allocated memory is still 104.9MB. Free memory was 74.4MB in the beginning and 71.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:01:17,753 INFO L158 Benchmark]: Boogie Preprocessor took 68.84ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 68.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:01:17,753 INFO L158 Benchmark]: RCFGBuilder took 785.29ms. Allocated memory is still 104.9MB. Free memory was 68.7MB in the beginning and 48.2MB in the end (delta: 20.5MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-10-24 19:01:17,753 INFO L158 Benchmark]: TraceAbstraction took 2788.37ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 47.5MB in the beginning and 67.5MB in the end (delta: -20.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-10-24 19:01:17,753 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 138.4MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:01:17,755 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 75.5MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.61ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 51.6MB in the beginning and 74.4MB in the end (delta: -22.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.58ms. Allocated memory is still 104.9MB. Free memory was 74.4MB in the beginning and 71.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.84ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 68.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 785.29ms. Allocated memory is still 104.9MB. Free memory was 68.7MB in the beginning and 48.2MB in the end (delta: 20.5MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2788.37ms. Allocated memory was 104.9MB in the beginning and 138.4MB in the end (delta: 33.6MB). Free memory was 47.5MB in the beginning and 67.5MB in the end (delta: -20.1MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 138.4MB. Free memory is still 66.5MB. 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_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L720] 0 _Bool x$flush_delayed; [L721] 0 int x$mem_tmp; [L722] 0 _Bool x$r_buff0_thd0; [L723] 0 _Bool x$r_buff0_thd1; [L724] 0 _Bool x$r_buff0_thd2; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L813] 0 pthread_t t1633; [L814] FCALL, FORK 0 pthread_create(&t1633, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1633=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L815] 0 pthread_t t1634; [L816] FCALL, FORK 0 pthread_create(&t1634, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1633=0, t1634=1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L782] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L785] 2 __unbuffered_p1_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L788] 2 __unbuffered_p1_EBX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L741] 1 y = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1633=0, t1634=1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1633=0, t1634=1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L829] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1633=0, t1634=1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L18] 0 __assert_fail ("0", "rfi003_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] - 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: 811]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 814]: 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: 816]: 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, 57 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: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 5 NumberOfNonLiveVariables, 429 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 19:01:17,783 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