./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/safe021_power.oepc_pso.oepc_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/safe021_power.oepc_pso.oepc_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 cbb513b70df4783d73c8ce937f205ecfc8e5e869592c62a4af16bc0bc109e7a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:04:17,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:04:17,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:04:17,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:04:17,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:04:17,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:04:17,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:04:17,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:04:17,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:04:17,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:04:17,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:04:17,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:04:17,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:04:17,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:04:17,299 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:04:17,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:04:17,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:04:17,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:04:17,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:04:17,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:04:17,300 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:04:17,304 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:04:17,304 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:04:17,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:04:17,304 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:04:17,305 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:04:17,305 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:04:17,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:04:17,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:04:17,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:04:17,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:04:17,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:04:17,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:04:17,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:17,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:04:17,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:04:17,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:04:17,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:04:17,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:04:17,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:04:17,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:04:17,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:04:17,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbb513b70df4783d73c8ce937f205ecfc8e5e869592c62a4af16bc0bc109e7a4 [2024-10-24 19:04:17,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:04:17,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:04:17,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:04:17,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:04:17,581 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:04:17,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-24 19:04:18,843 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:04:19,034 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:04:19,035 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-24 19:04:19,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8799f4f2/84454f85a77e4795beaa678c53d6a991/FLAG928d801d2 [2024-10-24 19:04:19,391 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8799f4f2/84454f85a77e4795beaa678c53d6a991 [2024-10-24 19:04:19,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:04:19,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:04:19,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:04:19,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:04:19,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:04:19,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673397d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19, skipping insertion in model container [2024-10-24 19:04:19,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,446 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:04:19,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:04:19,783 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:04:19,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:04:19,857 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:04:19,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19 WrapperNode [2024-10-24 19:04:19,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:04:19,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:04:19,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:04:19,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:04:19,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,909 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 119 [2024-10-24 19:04:19,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:04:19,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:04:19,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:04:19,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:04:19,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,950 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 19:04:19,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:04:19,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:04:19,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:04:19,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:04:19,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (1/1) ... [2024-10-24 19:04:19,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:19,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:04:20,006 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 19:04:20,008 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 19:04:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:04:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:04:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:04:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:04:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:04:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:04:20,047 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:04:20,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:04:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:04:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:04:20,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:04:20,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:04:20,051 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 19:04:20,185 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:04:20,187 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:04:20,427 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:04:20,428 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:04:20,556 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:04:20,557 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:04:20,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:20 BoogieIcfgContainer [2024-10-24 19:04:20,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:04:20,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:04:20,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:04:20,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:04:20,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:04:19" (1/3) ... [2024-10-24 19:04:20,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152ea4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:04:20, skipping insertion in model container [2024-10-24 19:04:20,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:19" (2/3) ... [2024-10-24 19:04:20,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152ea4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:04:20, skipping insertion in model container [2024-10-24 19:04:20,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:20" (3/3) ... [2024-10-24 19:04:20,564 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-24 19:04:20,577 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:04:20,577 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 19:04:20,577 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:04:20,618 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:04:20,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-10-24 19:04:20,672 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-24 19:04:20,673 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:20,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-24 19:04:20,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-10-24 19:04:20,679 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-10-24 19:04:20,690 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:04:20,697 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;@518d8535, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:04:20,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-24 19:04:20,700 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:04:20,701 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-24 19:04:20,701 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:20,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:20,701 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 19:04:20,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:20,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:20,706 INFO L85 PathProgramCache]: Analyzing trace with hash 11970237, now seen corresponding path program 1 times [2024-10-24 19:04:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355661846] [2024-10-24 19:04:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:21,072 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 19:04:21,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:21,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355661846] [2024-10-24 19:04:21,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355661846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:21,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:21,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:04:21,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674684539] [2024-10-24 19:04:21,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:21,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:04:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:04:21,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:04:21,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-24 19:04:21,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:21,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:21,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-24 19:04:21,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:21,456 INFO L124 PetriNetUnfolderBase]: 825/1536 cut-off events. [2024-10-24 19:04:21,457 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-24 19:04:21,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2817 conditions, 1536 events. 825/1536 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10083 event pairs, 129 based on Foata normal form. 96/1622 useless extension candidates. Maximal degree in co-relation 2806. Up to 1009 conditions per place. [2024-10-24 19:04:21,472 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 33 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2024-10-24 19:04:21,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 195 flow [2024-10-24 19:04:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:04:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:04:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-10-24 19:04:21,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-24 19:04:21,483 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 99 transitions. [2024-10-24 19:04:21,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 195 flow [2024-10-24 19:04:21,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 19:04:21,490 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-10-24 19:04:21,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-10-24 19:04:21,494 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-10-24 19:04:21,494 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-10-24 19:04:21,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:21,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:21,495 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:21,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:04:21,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:21,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:21,496 INFO L85 PathProgramCache]: Analyzing trace with hash 16910950, now seen corresponding path program 1 times [2024-10-24 19:04:21,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:21,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450585535] [2024-10-24 19:04:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:21,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:21,553 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 19:04:21,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:21,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450585535] [2024-10-24 19:04:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450585535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:21,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:21,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:04:21,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082963588] [2024-10-24 19:04:21,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:21,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:04:21,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:21,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:04:21,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:04:21,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:04:21,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 19:04:21,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:21,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:04:21,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:21,719 INFO L124 PetriNetUnfolderBase]: 721/1385 cut-off events. [2024-10-24 19:04:21,719 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-24 19:04:21,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2605 conditions, 1385 events. 721/1385 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8937 event pairs, 721 based on Foata normal form. 48/1395 useless extension candidates. Maximal degree in co-relation 2595. Up to 1090 conditions per place. [2024-10-24 19:04:21,725 INFO L140 encePairwiseOnDemand]: 42/44 looper letters, 18 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-10-24 19:04:21,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 120 flow [2024-10-24 19:04:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:04:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:04:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-10-24 19:04:21,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-10-24 19:04:21,727 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 3 states and 75 transitions. [2024-10-24 19:04:21,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 120 flow [2024-10-24 19:04:21,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:04:21,728 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-10-24 19:04:21,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-10-24 19:04:21,729 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -5 predicate places. [2024-10-24 19:04:21,729 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-10-24 19:04:21,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 19:04:21,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:21,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:21,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:04:21,731 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:21,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:21,732 INFO L85 PathProgramCache]: Analyzing trace with hash 16912472, now seen corresponding path program 1 times [2024-10-24 19:04:21,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:21,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044724369] [2024-10-24 19:04:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:21,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:21,955 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 19:04:21,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:21,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044724369] [2024-10-24 19:04:21,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044724369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:21,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:21,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:04:21,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123703137] [2024-10-24 19:04:21,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:21,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:21,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:21,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:21,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:21,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2024-10-24 19:04:21,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:21,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:21,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2024-10-24 19:04:21,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:22,759 INFO L124 PetriNetUnfolderBase]: 3690/6028 cut-off events. [2024-10-24 19:04:22,759 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:22,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11568 conditions, 6028 events. 3690/6028 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 41416 event pairs, 797 based on Foata normal form. 0/5871 useless extension candidates. Maximal degree in co-relation 11562. Up to 2334 conditions per place. [2024-10-24 19:04:22,807 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 36 selfloop transitions, 5 changer transitions 71/122 dead transitions. [2024-10-24 19:04:22,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 122 transitions, 478 flow [2024-10-24 19:04:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:04:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:04:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 240 transitions. [2024-10-24 19:04:22,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-24 19:04:22,809 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 240 transitions. [2024-10-24 19:04:22,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 122 transitions, 478 flow [2024-10-24 19:04:22,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 122 transitions, 477 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:04:22,812 INFO L231 Difference]: Finished difference. Result has 58 places, 37 transitions, 143 flow [2024-10-24 19:04:22,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=143, PETRI_PLACES=58, PETRI_TRANSITIONS=37} [2024-10-24 19:04:22,813 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 9 predicate places. [2024-10-24 19:04:22,813 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 37 transitions, 143 flow [2024-10-24 19:04:22,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:22,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:22,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:22,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:04:22,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:22,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:22,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1491679643, now seen corresponding path program 1 times [2024-10-24 19:04:22,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:22,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381108486] [2024-10-24 19:04:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:22,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:22,953 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 19:04:22,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:22,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381108486] [2024-10-24 19:04:22,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381108486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:22,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:22,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696005360] [2024-10-24 19:04:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:22,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:22,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:22,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2024-10-24 19:04:22,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 37 transitions, 143 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 19:04:22,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:22,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2024-10-24 19:04:22,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:23,744 INFO L124 PetriNetUnfolderBase]: 2621/4414 cut-off events. [2024-10-24 19:04:23,745 INFO L125 PetriNetUnfolderBase]: For 4203/4205 co-relation queries the response was YES. [2024-10-24 19:04:23,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11818 conditions, 4414 events. 2621/4414 cut-off events. For 4203/4205 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 29530 event pairs, 418 based on Foata normal form. 120/4521 useless extension candidates. Maximal degree in co-relation 11803. Up to 1941 conditions per place. [2024-10-24 19:04:23,765 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 42 selfloop transitions, 6 changer transitions 52/110 dead transitions. [2024-10-24 19:04:23,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 110 transitions, 583 flow [2024-10-24 19:04:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:04:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:04:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 239 transitions. [2024-10-24 19:04:23,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5431818181818182 [2024-10-24 19:04:23,770 INFO L175 Difference]: Start difference. First operand has 58 places, 37 transitions, 143 flow. Second operand 10 states and 239 transitions. [2024-10-24 19:04:23,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 110 transitions, 583 flow [2024-10-24 19:04:23,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 110 transitions, 517 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-10-24 19:04:23,790 INFO L231 Difference]: Finished difference. Result has 65 places, 39 transitions, 173 flow [2024-10-24 19:04:23,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=173, PETRI_PLACES=65, PETRI_TRANSITIONS=39} [2024-10-24 19:04:23,791 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2024-10-24 19:04:23,792 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 39 transitions, 173 flow [2024-10-24 19:04:23,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 19:04:23,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:23,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:23,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:04:23,794 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:23,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash -867336713, now seen corresponding path program 1 times [2024-10-24 19:04:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:23,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790241461] [2024-10-24 19:04:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:23,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:23,923 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 19:04:23,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:23,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790241461] [2024-10-24 19:04:23,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790241461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:23,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:23,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:23,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875165802] [2024-10-24 19:04:23,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:23,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:23,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:23,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:23,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:23,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 44 [2024-10-24 19:04:23,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 39 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 19:04:23,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:23,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 44 [2024-10-24 19:04:23,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:24,572 INFO L124 PetriNetUnfolderBase]: 2496/4281 cut-off events. [2024-10-24 19:04:24,572 INFO L125 PetriNetUnfolderBase]: For 7390/7394 co-relation queries the response was YES. [2024-10-24 19:04:24,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12089 conditions, 4281 events. 2496/4281 cut-off events. For 7390/7394 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 28612 event pairs, 531 based on Foata normal form. 125/4404 useless extension candidates. Maximal degree in co-relation 12067. Up to 1965 conditions per place. [2024-10-24 19:04:24,594 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 46 selfloop transitions, 11 changer transitions 52/119 dead transitions. [2024-10-24 19:04:24,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 119 transitions, 725 flow [2024-10-24 19:04:24,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:04:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:04:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 248 transitions. [2024-10-24 19:04:24,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5636363636363636 [2024-10-24 19:04:24,596 INFO L175 Difference]: Start difference. First operand has 65 places, 39 transitions, 173 flow. Second operand 10 states and 248 transitions. [2024-10-24 19:04:24,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 119 transitions, 725 flow [2024-10-24 19:04:24,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 119 transitions, 673 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-10-24 19:04:24,615 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 238 flow [2024-10-24 19:04:24,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=238, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2024-10-24 19:04:24,616 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 20 predicate places. [2024-10-24 19:04:24,616 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 238 flow [2024-10-24 19:04:24,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 19:04:24,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:24,616 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 19:04:24,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:04:24,616 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:24,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash 160585878, now seen corresponding path program 1 times [2024-10-24 19:04:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:24,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661389779] [2024-10-24 19:04:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:24,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:24,753 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 19:04:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:24,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661389779] [2024-10-24 19:04:24,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661389779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:24,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:24,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937053654] [2024-10-24 19:04:24,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:24,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:24,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:24,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:24,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:24,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:24,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 43 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 19:04:24,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:24,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:24,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:25,578 INFO L124 PetriNetUnfolderBase]: 3130/5305 cut-off events. [2024-10-24 19:04:25,578 INFO L125 PetriNetUnfolderBase]: For 7162/7271 co-relation queries the response was YES. [2024-10-24 19:04:25,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14273 conditions, 5305 events. 3130/5305 cut-off events. For 7162/7271 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 36979 event pairs, 594 based on Foata normal form. 147/5401 useless extension candidates. Maximal degree in co-relation 14248. Up to 1851 conditions per place. [2024-10-24 19:04:25,602 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 36 selfloop transitions, 4 changer transitions 53/107 dead transitions. [2024-10-24 19:04:25,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 107 transitions, 677 flow [2024-10-24 19:04:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:04:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:04:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-10-24 19:04:25,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5710227272727273 [2024-10-24 19:04:25,604 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 238 flow. Second operand 8 states and 201 transitions. [2024-10-24 19:04:25,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 107 transitions, 677 flow [2024-10-24 19:04:25,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 107 transitions, 643 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-10-24 19:04:25,637 INFO L231 Difference]: Finished difference. Result has 68 places, 38 transitions, 188 flow [2024-10-24 19:04:25,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=188, PETRI_PLACES=68, PETRI_TRANSITIONS=38} [2024-10-24 19:04:25,638 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2024-10-24 19:04:25,638 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 38 transitions, 188 flow [2024-10-24 19:04:25,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 19:04:25,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:25,639 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] [2024-10-24 19:04:25,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:04:25,639 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:25,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:25,639 INFO L85 PathProgramCache]: Analyzing trace with hash -52802444, now seen corresponding path program 1 times [2024-10-24 19:04:25,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:25,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796271864] [2024-10-24 19:04:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:25,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:25,729 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 19:04:25,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:25,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796271864] [2024-10-24 19:04:25,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796271864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:25,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:25,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:04:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186603942] [2024-10-24 19:04:25,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:25,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:04:25,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:25,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:04:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:04:25,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:25,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 38 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 19:04:25,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:25,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:25,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:26,156 INFO L124 PetriNetUnfolderBase]: 2818/4690 cut-off events. [2024-10-24 19:04:26,157 INFO L125 PetriNetUnfolderBase]: For 4552/4702 co-relation queries the response was YES. [2024-10-24 19:04:26,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11575 conditions, 4690 events. 2818/4690 cut-off events. For 4552/4702 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 29038 event pairs, 418 based on Foata normal form. 192/4817 useless extension candidates. Maximal degree in co-relation 11550. Up to 2514 conditions per place. [2024-10-24 19:04:26,178 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 46 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2024-10-24 19:04:26,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 378 flow [2024-10-24 19:04:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:04:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:04:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-10-24 19:04:26,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-24 19:04:26,179 INFO L175 Difference]: Start difference. First operand has 68 places, 38 transitions, 188 flow. Second operand 4 states and 110 transitions. [2024-10-24 19:04:26,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 65 transitions, 378 flow [2024-10-24 19:04:26,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 317 flow, removed 9 selfloop flow, removed 13 redundant places. [2024-10-24 19:04:26,193 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 173 flow [2024-10-24 19:04:26,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-10-24 19:04:26,194 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2024-10-24 19:04:26,194 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 173 flow [2024-10-24 19:04:26,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 19:04:26,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:26,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:26,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:04:26,195 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:26,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:26,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1356829165, now seen corresponding path program 1 times [2024-10-24 19:04:26,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:26,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378937826] [2024-10-24 19:04:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:26,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:26,297 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 19:04:26,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:26,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378937826] [2024-10-24 19:04:26,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378937826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:26,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:26,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:04:26,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479832687] [2024-10-24 19:04:26,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:26,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:26,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:26,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:26,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:26,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:26,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:26,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:26,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:26,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:26,613 INFO L124 PetriNetUnfolderBase]: 2037/3409 cut-off events. [2024-10-24 19:04:26,614 INFO L125 PetriNetUnfolderBase]: For 2243/2334 co-relation queries the response was YES. [2024-10-24 19:04:26,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8732 conditions, 3409 events. 2037/3409 cut-off events. For 2243/2334 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 19624 event pairs, 254 based on Foata normal form. 161/3510 useless extension candidates. Maximal degree in co-relation 8716. Up to 1033 conditions per place. [2024-10-24 19:04:26,626 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 59 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-10-24 19:04:26,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 439 flow [2024-10-24 19:04:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:04:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:04:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2024-10-24 19:04:26,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-10-24 19:04:26,627 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 173 flow. Second operand 5 states and 140 transitions. [2024-10-24 19:04:26,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 439 flow [2024-10-24 19:04:26,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 81 transitions, 436 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:04:26,630 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 225 flow [2024-10-24 19:04:26,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2024-10-24 19:04:26,630 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 12 predicate places. [2024-10-24 19:04:26,631 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 225 flow [2024-10-24 19:04:26,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:26,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:26,631 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:26,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:04:26,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:26,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1465309736, now seen corresponding path program 1 times [2024-10-24 19:04:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526993445] [2024-10-24 19:04:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:26,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:26,832 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 19:04:26,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:26,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526993445] [2024-10-24 19:04:26,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526993445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:26,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:26,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625331904] [2024-10-24 19:04:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:26,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:26,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:26,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:26,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:04:26,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:26,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:26,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:27,170 INFO L124 PetriNetUnfolderBase]: 1597/2613 cut-off events. [2024-10-24 19:04:27,171 INFO L125 PetriNetUnfolderBase]: For 3898/3977 co-relation queries the response was YES. [2024-10-24 19:04:27,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7727 conditions, 2613 events. 1597/2613 cut-off events. For 3898/3977 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 14347 event pairs, 230 based on Foata normal form. 81/2634 useless extension candidates. Maximal degree in co-relation 7708. Up to 932 conditions per place. [2024-10-24 19:04:27,181 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 51 selfloop transitions, 11 changer transitions 1/77 dead transitions. [2024-10-24 19:04:27,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 77 transitions, 446 flow [2024-10-24 19:04:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:04:27,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:04:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-10-24 19:04:27,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-10-24 19:04:27,183 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 225 flow. Second operand 6 states and 152 transitions. [2024-10-24 19:04:27,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 77 transitions, 446 flow [2024-10-24 19:04:27,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 77 transitions, 412 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-24 19:04:27,187 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 244 flow [2024-10-24 19:04:27,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-10-24 19:04:27,188 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2024-10-24 19:04:27,188 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 244 flow [2024-10-24 19:04:27,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:04:27,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:27,188 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, 1, 1, 1, 1] [2024-10-24 19:04:27,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:04:27,189 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:27,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:27,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1531266937, now seen corresponding path program 1 times [2024-10-24 19:04:27,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:27,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99856288] [2024-10-24 19:04:27,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:27,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:28,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:28,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99856288] [2024-10-24 19:04:28,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99856288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:28,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:28,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:04:28,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695306125] [2024-10-24 19:04:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:28,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:04:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:28,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:04:28,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:04:28,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-10-24 19:04:28,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 244 flow. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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 19:04:28,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:28,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-10-24 19:04:28,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:28,381 INFO L124 PetriNetUnfolderBase]: 981/1920 cut-off events. [2024-10-24 19:04:28,381 INFO L125 PetriNetUnfolderBase]: For 3083/3395 co-relation queries the response was YES. [2024-10-24 19:04:28,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5306 conditions, 1920 events. 981/1920 cut-off events. For 3083/3395 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 12688 event pairs, 211 based on Foata normal form. 27/1742 useless extension candidates. Maximal degree in co-relation 5288. Up to 706 conditions per place. [2024-10-24 19:04:28,389 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 33 selfloop transitions, 4 changer transitions 25/88 dead transitions. [2024-10-24 19:04:28,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 88 transitions, 481 flow [2024-10-24 19:04:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:04:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:04:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 214 transitions. [2024-10-24 19:04:28,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5404040404040404 [2024-10-24 19:04:28,390 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 244 flow. Second operand 9 states and 214 transitions. [2024-10-24 19:04:28,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 88 transitions, 481 flow [2024-10-24 19:04:28,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 88 transitions, 457 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-24 19:04:28,398 INFO L231 Difference]: Finished difference. Result has 72 places, 47 transitions, 240 flow [2024-10-24 19:04:28,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=72, PETRI_TRANSITIONS=47} [2024-10-24 19:04:28,399 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 23 predicate places. [2024-10-24 19:04:28,399 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 47 transitions, 240 flow [2024-10-24 19:04:28,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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 19:04:28,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:28,399 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, 1, 1, 1, 1] [2024-10-24 19:04:28,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:04:28,399 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:28,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash -681741861, now seen corresponding path program 2 times [2024-10-24 19:04:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:28,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017105995] [2024-10-24 19:04:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:28,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:04:28,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:04:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:04:28,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 19:04:28,555 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:04:28,557 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-24 19:04:28,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-24 19:04:28,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-24 19:04:28,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-24 19:04:28,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-24 19:04:28,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-10-24 19:04:28,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-24 19:04:28,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:04:28,560 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:28,618 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:04:28,618 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:04:28,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:04:28 BasicIcfg [2024-10-24 19:04:28,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:04:28,622 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:04:28,622 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:04:28,622 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:04:28,622 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:20" (3/4) ... [2024-10-24 19:04:28,624 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 19:04:28,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:04:28,626 INFO L158 Benchmark]: Toolchain (without parser) took 9232.06ms. Allocated memory was 163.6MB in the beginning and 882.9MB in the end (delta: 719.3MB). Free memory was 114.9MB in the beginning and 560.2MB in the end (delta: -445.3MB). Peak memory consumption was 274.1MB. Max. memory is 16.1GB. [2024-10-24 19:04:28,626 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:04:28,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.85ms. Allocated memory is still 163.6MB. Free memory was 114.3MB in the beginning and 89.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-24 19:04:28,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.56ms. Allocated memory is still 163.6MB. Free memory was 88.7MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:04:28,628 INFO L158 Benchmark]: Boogie Preprocessor took 60.78ms. Allocated memory is still 163.6MB. Free memory was 86.6MB in the beginning and 82.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:04:28,628 INFO L158 Benchmark]: RCFGBuilder took 582.97ms. Allocated memory is still 163.6MB. Free memory was 82.9MB in the beginning and 84.5MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 19:04:28,628 INFO L158 Benchmark]: TraceAbstraction took 8062.72ms. Allocated memory was 163.6MB in the beginning and 882.9MB in the end (delta: 719.3MB). Free memory was 84.3MB in the beginning and 560.2MB in the end (delta: -475.8MB). Peak memory consumption was 246.7MB. Max. memory is 16.1GB. [2024-10-24 19:04:28,628 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 882.9MB. Free memory is still 560.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:04:28,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 100.7MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.85ms. Allocated memory is still 163.6MB. Free memory was 114.3MB in the beginning and 89.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.56ms. Allocated memory is still 163.6MB. Free memory was 88.7MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.78ms. Allocated memory is still 163.6MB. Free memory was 86.6MB in the beginning and 82.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 582.97ms. Allocated memory is still 163.6MB. Free memory was 82.9MB in the beginning and 84.5MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8062.72ms. Allocated memory was 163.6MB in the beginning and 882.9MB in the end (delta: 719.3MB). Free memory was 84.3MB in the beginning and 560.2MB in the end (delta: -475.8MB). Peak memory consumption was 246.7MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 882.9MB. Free memory is still 560.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L721] 0 int z = 0; [L722] 0 _Bool z$flush_delayed; [L723] 0 int z$mem_tmp; [L724] 0 _Bool z$r_buff0_thd0; [L725] 0 _Bool z$r_buff0_thd1; [L726] 0 _Bool z$r_buff0_thd2; [L727] 0 _Bool z$r_buff0_thd3; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L730] 0 _Bool z$r_buff1_thd2; [L731] 0 _Bool z$r_buff1_thd3; [L732] 0 _Bool z$read_delayed; [L733] 0 int *z$read_delayed_var; [L734] 0 int z$w_buff0; [L735] 0 _Bool z$w_buff0_used; [L736] 0 int z$w_buff1; [L737] 0 _Bool z$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L833] 0 pthread_t t2281; [L834] FCALL, FORK 0 pthread_create(&t2281, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2281=-3, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L835] 0 pthread_t t2282; [L836] FCALL, FORK 0 pthread_create(&t2282, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2281=-3, t2282=-2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L837] 0 pthread_t t2283; [L838] FCALL, FORK 0 pthread_create(&t2283, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2281=-3, t2282=-2, t2283=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L743] 1 z$w_buff1 = z$w_buff0 [L744] 1 z$w_buff0 = 1 [L745] 1 z$w_buff1_used = z$w_buff0_used [L746] 1 z$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L748] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L749] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L750] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L751] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L752] 1 z$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L755] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L772] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L775] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L792] 3 __unbuffered_p2_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L795] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L796] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L797] 3 z$flush_delayed = weak$$choice2 [L798] 3 z$mem_tmp = z [L799] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L800] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L801] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L802] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L803] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L804] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L805] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L806] 3 __unbuffered_p2_EBX = z [L807] 3 z = z$flush_delayed ? z$mem_tmp : z [L808] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L778] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L779] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L780] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L781] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L782] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L811] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L812] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L813] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L814] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L815] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L758] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L759] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L760] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L761] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L762] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L818] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L840] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2281=-3, t2282=-2, t2283=-1, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L842] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L842] RET 0 assume_abort_if_not(main$tmp_guard0) [L844] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L845] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L846] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L847] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L848] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2281=-3, t2282=-2, t2283=-1, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L851] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2281=-3, t2282=-2, t2283=-1, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L853] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 831]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 838]: 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: 836]: 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 7 procedures, 68 locations, 7 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: 7.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 536 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 501 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1282 IncrementalHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 37 mSDtfsCounter, 1282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=9, InterpolantAutomatonStates: 67, 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, 1.9s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 19:04:28,653 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/safe021_power.oepc_pso.oepc_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 cbb513b70df4783d73c8ce937f205ecfc8e5e869592c62a4af16bc0bc109e7a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:04:30,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:04:30,605 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-24 19:04:30,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:04:30,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:04:30,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:04:30,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:04:30,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:04:30,632 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:04:30,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:04:30,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:04:30,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:04:30,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:04:30,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:04:30,634 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:04:30,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:04:30,634 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:04:30,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:04:30,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:04:30,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:04:30,635 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:04:30,638 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:04:30,638 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:04:30,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:04:30,639 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:04:30,639 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 19:04:30,639 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:04:30,640 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 19:04:30,640 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:04:30,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:04:30,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:04:30,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:04:30,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:04:30,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:04:30,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:04:30,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:30,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:04:30,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:04:30,641 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 19:04:30,642 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 19:04:30,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:04:30,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:04:30,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:04:30,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:04:30,643 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 19:04:30,643 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 -> cbb513b70df4783d73c8ce937f205ecfc8e5e869592c62a4af16bc0bc109e7a4 [2024-10-24 19:04:30,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:04:30,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:04:30,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:04:30,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:04:30,932 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:04:30,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-24 19:04:32,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:04:32,435 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:04:32,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-24 19:04:32,452 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db4b9d6be/3068b1fbd80b4fb3905a93c6d532e1a2/FLAGeb7859496 [2024-10-24 19:04:32,765 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db4b9d6be/3068b1fbd80b4fb3905a93c6d532e1a2 [2024-10-24 19:04:32,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:04:32,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:04:32,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:04:32,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:04:32,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:04:32,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:04:32" (1/1) ... [2024-10-24 19:04:32,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50aba605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:32, skipping insertion in model container [2024-10-24 19:04:32,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:04:32" (1/1) ... [2024-10-24 19:04:32,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:04:33,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:04:33,166 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:04:33,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:04:33,241 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:04:33,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33 WrapperNode [2024-10-24 19:04:33,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:04:33,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:04:33,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:04:33,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:04:33,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,293 INFO L138 Inliner]: procedures = 176, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 120 [2024-10-24 19:04:33,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:04:33,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:04:33,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:04:33,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:04:33,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,329 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 19:04:33,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:04:33,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:04:33,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:04:33,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:04:33,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (1/1) ... [2024-10-24 19:04:33,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:33,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:04:33,370 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 19:04:33,372 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 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:04:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:04:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:04:33,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:04:33,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:04:33,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:04:33,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:04:33,405 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 19:04:33,522 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:04:33,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:04:33,803 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:04:33,804 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:04:33,979 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:04:33,979 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:04:33,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:33 BoogieIcfgContainer [2024-10-24 19:04:33,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:04:33,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:04:33,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:04:33,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:04:33,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:04:32" (1/3) ... [2024-10-24 19:04:33,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257afb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:04:33, skipping insertion in model container [2024-10-24 19:04:33,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:33" (2/3) ... [2024-10-24 19:04:33,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257afb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:04:33, skipping insertion in model container [2024-10-24 19:04:33,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:33" (3/3) ... [2024-10-24 19:04:33,988 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-24 19:04:34,000 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:04:34,000 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 19:04:34,000 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:04:34,048 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:04:34,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-10-24 19:04:34,097 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-24 19:04:34,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:34,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-24 19:04:34,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-10-24 19:04:34,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-10-24 19:04:34,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:04:34,120 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;@4ffb5903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:04:34,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-24 19:04:34,122 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:04:34,123 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-24 19:04:34,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:34,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:34,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 19:04:34,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:34,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:34,128 INFO L85 PathProgramCache]: Analyzing trace with hash 12031805, now seen corresponding path program 1 times [2024-10-24 19:04:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179462966] [2024-10-24 19:04:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:34,138 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 19:04:34,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:34,141 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 19:04:34,142 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 19:04:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:34,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:04:34,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:34,240 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 19:04:34,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:34,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:34,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179462966] [2024-10-24 19:04:34,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179462966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:34,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:34,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:04:34,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908943497] [2024-10-24 19:04:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:34,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:04:34,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:34,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:04:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:04:34,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-24 19:04:34,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:34,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:34,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-24 19:04:34,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:34,582 INFO L124 PetriNetUnfolderBase]: 825/1536 cut-off events. [2024-10-24 19:04:34,582 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-24 19:04:34,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2817 conditions, 1536 events. 825/1536 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10083 event pairs, 129 based on Foata normal form. 96/1622 useless extension candidates. Maximal degree in co-relation 2806. Up to 1009 conditions per place. [2024-10-24 19:04:34,595 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 33 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2024-10-24 19:04:34,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 195 flow [2024-10-24 19:04:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:04:34,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:04:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-10-24 19:04:34,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-24 19:04:34,605 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 99 transitions. [2024-10-24 19:04:34,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 195 flow [2024-10-24 19:04:34,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 19:04:34,610 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-10-24 19:04:34,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-10-24 19:04:34,614 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-10-24 19:04:34,614 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-10-24 19:04:34,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:04:34,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:34,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:34,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-24 19:04:34,815 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 19:04:34,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:34,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash -589786968, now seen corresponding path program 1 times [2024-10-24 19:04:34,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:34,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957462940] [2024-10-24 19:04:34,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:34,817 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 19:04:34,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:34,823 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 19:04:34,824 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 19:04:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:34,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 19:04:34,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:34,919 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 19:04:34,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:34,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:34,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957462940] [2024-10-24 19:04:34,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957462940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:34,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:34,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:04:34,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684476172] [2024-10-24 19:04:34,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:34,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:04:34,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:34,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:04:34,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:04:34,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:34,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 19:04:34,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:34,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:34,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:35,250 INFO L124 PetriNetUnfolderBase]: 1680/2956 cut-off events. [2024-10-24 19:04:35,251 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-10-24 19:04:35,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5689 conditions, 2956 events. 1680/2956 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 19303 event pairs, 188 based on Foata normal form. 100/3035 useless extension candidates. Maximal degree in co-relation 5679. Up to 1579 conditions per place. [2024-10-24 19:04:35,262 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 43 selfloop transitions, 5 changer transitions 1/61 dead transitions. [2024-10-24 19:04:35,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 238 flow [2024-10-24 19:04:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:04:35,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:04:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-10-24 19:04:35,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6306818181818182 [2024-10-24 19:04:35,265 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 4 states and 111 transitions. [2024-10-24 19:04:35,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 238 flow [2024-10-24 19:04:35,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:04:35,268 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2024-10-24 19:04:35,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2024-10-24 19:04:35,270 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-10-24 19:04:35,271 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2024-10-24 19:04:35,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 19:04:35,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:35,271 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] [2024-10-24 19:04:35,275 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 19:04:35,474 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 19:04:35,475 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:35,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:35,476 INFO L85 PathProgramCache]: Analyzing trace with hash -804291461, now seen corresponding path program 1 times [2024-10-24 19:04:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:35,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662619772] [2024-10-24 19:04:35,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:35,480 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 19:04:35,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:35,481 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 19:04:35,482 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 19:04:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:35,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 19:04:35,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:35,592 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 19:04:35,592 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:35,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662619772] [2024-10-24 19:04:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662619772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:35,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:35,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:04:35,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139321116] [2024-10-24 19:04:35,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:35,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:35,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:35,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:35,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 112 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 19:04:35,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:35,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:35,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:35,878 INFO L124 PetriNetUnfolderBase]: 1038/1834 cut-off events. [2024-10-24 19:04:35,878 INFO L125 PetriNetUnfolderBase]: For 417/417 co-relation queries the response was YES. [2024-10-24 19:04:35,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4067 conditions, 1834 events. 1038/1834 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 10370 event pairs, 100 based on Foata normal form. 82/1896 useless extension candidates. Maximal degree in co-relation 4055. Up to 697 conditions per place. [2024-10-24 19:04:35,886 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 54 selfloop transitions, 8 changer transitions 1/75 dead transitions. [2024-10-24 19:04:35,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 75 transitions, 331 flow [2024-10-24 19:04:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:04:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:04:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2024-10-24 19:04:35,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-10-24 19:04:35,887 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 5 states and 140 transitions. [2024-10-24 19:04:35,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 75 transitions, 331 flow [2024-10-24 19:04:35,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 75 transitions, 321 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-24 19:04:35,890 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 152 flow [2024-10-24 19:04:35,890 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2024-10-24 19:04:35,892 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2024-10-24 19:04:35,893 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 152 flow [2024-10-24 19:04:35,893 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 19:04:35,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:35,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:35,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 19:04:36,096 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 19:04:36,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:36,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1101493783, now seen corresponding path program 1 times [2024-10-24 19:04:36,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:36,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66331598] [2024-10-24 19:04:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:36,099 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 19:04:36,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:36,102 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 19:04:36,103 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 19:04:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:36,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:04:36,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:36,203 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 19:04:36,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:36,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:36,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66331598] [2024-10-24 19:04:36,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66331598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:36,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:36,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809277725] [2024-10-24 19:04:36,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:36,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:36,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:36,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:36,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-10-24 19:04:36,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:04:36,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:36,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-10-24 19:04:36,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:36,429 INFO L124 PetriNetUnfolderBase]: 581/983 cut-off events. [2024-10-24 19:04:36,429 INFO L125 PetriNetUnfolderBase]: For 756/756 co-relation queries the response was YES. [2024-10-24 19:04:36,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2517 conditions, 983 events. 581/983 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4499 event pairs, 83 based on Foata normal form. 40/1003 useless extension candidates. Maximal degree in co-relation 2503. Up to 308 conditions per place. [2024-10-24 19:04:36,434 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 47 selfloop transitions, 11 changer transitions 1/71 dead transitions. [2024-10-24 19:04:36,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 71 transitions, 338 flow [2024-10-24 19:04:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:04:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:04:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-10-24 19:04:36,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.571969696969697 [2024-10-24 19:04:36,435 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 152 flow. Second operand 6 states and 151 transitions. [2024-10-24 19:04:36,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 71 transitions, 338 flow [2024-10-24 19:04:36,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 71 transitions, 313 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-24 19:04:36,439 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 166 flow [2024-10-24 19:04:36,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2024-10-24 19:04:36,439 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 6 predicate places. [2024-10-24 19:04:36,440 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 166 flow [2024-10-24 19:04:36,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:04:36,440 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:36,440 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, 1, 1, 1, 1] [2024-10-24 19:04:36,443 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 (5)] Ended with exit code 0 [2024-10-24 19:04:36,640 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 19:04:36,641 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:36,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash -163334841, now seen corresponding path program 1 times [2024-10-24 19:04:36,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:36,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370201697] [2024-10-24 19:04:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:36,642 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 19:04:36,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:36,645 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 19:04:36,646 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 19:04:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:36,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 19:04:36,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:36,767 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 19:04:36,768 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:36,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:36,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370201697] [2024-10-24 19:04:36,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370201697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:36,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:36,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:04:36,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375937307] [2024-10-24 19:04:36,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:36,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:04:36,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:36,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:04:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:04:36,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:04:36,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 19:04:36,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:36,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:04:36,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:36,837 INFO L124 PetriNetUnfolderBase]: 307/622 cut-off events. [2024-10-24 19:04:36,837 INFO L125 PetriNetUnfolderBase]: For 259/269 co-relation queries the response was YES. [2024-10-24 19:04:36,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 622 events. 307/622 cut-off events. For 259/269 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3043 event pairs, 288 based on Foata normal form. 8/590 useless extension candidates. Maximal degree in co-relation 1384. Up to 481 conditions per place. [2024-10-24 19:04:36,840 INFO L140 encePairwiseOnDemand]: 42/44 looper letters, 18 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-10-24 19:04:36,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 204 flow [2024-10-24 19:04:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:04:36,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:04:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-10-24 19:04:36,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-10-24 19:04:36,841 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 166 flow. Second operand 3 states and 75 transitions. [2024-10-24 19:04:36,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 204 flow [2024-10-24 19:04:36,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 148 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-24 19:04:36,843 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 108 flow [2024-10-24 19:04:36,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2024-10-24 19:04:36,844 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-10-24 19:04:36,846 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 108 flow [2024-10-24 19:04:36,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 19:04:36,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:36,847 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, 1, 1, 1, 1] [2024-10-24 19:04:36,850 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 19:04:37,047 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 19:04:37,048 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:37,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:37,049 INFO L85 PathProgramCache]: Analyzing trace with hash -800945083, now seen corresponding path program 1 times [2024-10-24 19:04:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869938279] [2024-10-24 19:04:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:37,050 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 19:04:37,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:37,074 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 19:04:37,075 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 (7)] Waiting until timeout for monitored process [2024-10-24 19:04:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:37,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:04:37,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:37,453 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 19:04:37,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:37,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:37,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869938279] [2024-10-24 19:04:37,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869938279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:37,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:37,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:04:37,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231714721] [2024-10-24 19:04:37,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:37,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:04:37,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:04:37,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:04:37,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-24 19:04:37,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 108 flow. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 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 19:04:37,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:37,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-24 19:04:37,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:37,751 INFO L124 PetriNetUnfolderBase]: 455/868 cut-off events. [2024-10-24 19:04:37,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:37,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1723 conditions, 868 events. 455/868 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4398 event pairs, 102 based on Foata normal form. 8/836 useless extension candidates. Maximal degree in co-relation 1716. Up to 236 conditions per place. [2024-10-24 19:04:37,754 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 32 selfloop transitions, 4 changer transitions 24/80 dead transitions. [2024-10-24 19:04:37,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 80 transitions, 316 flow [2024-10-24 19:04:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:04:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:04:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 223 transitions. [2024-10-24 19:04:37,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5631313131313131 [2024-10-24 19:04:37,756 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 108 flow. Second operand 9 states and 223 transitions. [2024-10-24 19:04:37,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 80 transitions, 316 flow [2024-10-24 19:04:37,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:04:37,758 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 125 flow [2024-10-24 19:04:37,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=125, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2024-10-24 19:04:37,759 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 9 predicate places. [2024-10-24 19:04:37,759 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 125 flow [2024-10-24 19:04:37,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 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 19:04:37,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:37,759 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, 1, 1, 1, 1] [2024-10-24 19:04:37,765 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 19:04:37,960 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 19:04:37,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:37,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:37,961 INFO L85 PathProgramCache]: Analyzing trace with hash -406433033, now seen corresponding path program 2 times [2024-10-24 19:04:37,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:37,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660518349] [2024-10-24 19:04:37,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:04:37,962 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 19:04:37,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:37,963 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:04:37,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-24 19:04:38,046 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 19:04:38,046 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:04:38,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:04:38,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:38,077 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 19:04:38,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:38,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:38,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660518349] [2024-10-24 19:04:38,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660518349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:38,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:38,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:38,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652663058] [2024-10-24 19:04:38,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:38,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:38,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:38,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:38,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-10-24 19:04:38,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:04:38,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:38,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-10-24 19:04:38,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:38,259 INFO L124 PetriNetUnfolderBase]: 693/1307 cut-off events. [2024-10-24 19:04:38,259 INFO L125 PetriNetUnfolderBase]: For 219/223 co-relation queries the response was YES. [2024-10-24 19:04:38,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1307 events. 693/1307 cut-off events. For 219/223 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7314 event pairs, 321 based on Foata normal form. 8/1248 useless extension candidates. Maximal degree in co-relation 2824. Up to 605 conditions per place. [2024-10-24 19:04:38,262 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 30 selfloop transitions, 2 changer transitions 13/63 dead transitions. [2024-10-24 19:04:38,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 277 flow [2024-10-24 19:04:38,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:04:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:04:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-10-24 19:04:38,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5727272727272728 [2024-10-24 19:04:38,263 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 125 flow. Second operand 5 states and 126 transitions. [2024-10-24 19:04:38,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 277 flow [2024-10-24 19:04:38,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 63 transitions, 255 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-10-24 19:04:38,265 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 123 flow [2024-10-24 19:04:38,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2024-10-24 19:04:38,266 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2024-10-24 19:04:38,266 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 123 flow [2024-10-24 19:04:38,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:04:38,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:38,266 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, 1, 1, 1, 1] [2024-10-24 19:04:38,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-24 19:04:38,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:04:38,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:38,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1622915565, now seen corresponding path program 3 times [2024-10-24 19:04:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514542345] [2024-10-24 19:04:38,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:04:38,469 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 19:04:38,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:38,470 INFO L229 MonitoredProcess]: Starting monitored process 9 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 19:04:38,470 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 (9)] Waiting until timeout for monitored process [2024-10-24 19:04:38,542 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-24 19:04:38,542 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:04:38,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:04:38,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:04:38,613 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 19:04:38,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:04:38,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:04:38,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514542345] [2024-10-24 19:04:38,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514542345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:38,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:38,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629516562] [2024-10-24 19:04:38,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:38,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:04:38,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:38,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-10-24 19:04:38,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 123 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 19:04:38,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:38,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-10-24 19:04:38,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:38,789 INFO L124 PetriNetUnfolderBase]: 550/1057 cut-off events. [2024-10-24 19:04:38,790 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-10-24 19:04:38,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 1057 events. 550/1057 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5299 event pairs, 162 based on Foata normal form. 8/1035 useless extension candidates. Maximal degree in co-relation 2176. Up to 370 conditions per place. [2024-10-24 19:04:38,793 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 25 selfloop transitions, 3 changer transitions 21/67 dead transitions. [2024-10-24 19:04:38,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 67 transitions, 288 flow [2024-10-24 19:04:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:04:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:04:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-10-24 19:04:38,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2024-10-24 19:04:38,795 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 123 flow. Second operand 6 states and 146 transitions. [2024-10-24 19:04:38,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 67 transitions, 288 flow [2024-10-24 19:04:38,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 67 transitions, 274 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 19:04:38,797 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 127 flow [2024-10-24 19:04:38,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2024-10-24 19:04:38,797 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2024-10-24 19:04:38,798 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 127 flow [2024-10-24 19:04:38,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 19:04:38,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:38,798 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, 1, 1, 1, 1] [2024-10-24 19:04:38,804 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 (9)] Ended with exit code 0 [2024-10-24 19:04:39,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 19:04:39,003 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-24 19:04:39,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:39,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2119035545, now seen corresponding path program 4 times [2024-10-24 19:04:39,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:04:39,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930436155] [2024-10-24 19:04:39,004 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:04:39,004 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 19:04:39,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:04:39,008 INFO L229 MonitoredProcess]: Starting monitored process 10 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 19:04:39,009 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 (10)] Waiting until timeout for monitored process [2024-10-24 19:04:39,075 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:04:39,076 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-10-24 19:04:39,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:04:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:04:39,173 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 19:04:39,173 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:04:39,174 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-24 19:04:39,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-24 19:04:39,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-24 19:04:39,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-24 19:04:39,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-24 19:04:39,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-10-24 19:04:39,179 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-24 19:04:39,184 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 (10)] Forceful destruction successful, exit code 0 [2024-10-24 19:04:39,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 19:04:39,380 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-10-24 19:04:39,454 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:04:39,454 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:04:39,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:04:39 BasicIcfg [2024-10-24 19:04:39,460 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:04:39,460 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:04:39,460 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:04:39,460 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:04:39,461 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:33" (3/4) ... [2024-10-24 19:04:39,462 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 19:04:39,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:04:39,463 INFO L158 Benchmark]: Toolchain (without parser) took 6695.52ms. Allocated memory was 77.6MB in the beginning and 197.1MB in the end (delta: 119.5MB). Free memory was 44.7MB in the beginning and 145.1MB in the end (delta: -100.4MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,463 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 37.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:04:39,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.37ms. Allocated memory is still 77.6MB. Free memory was 44.5MB in the beginning and 37.9MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.03ms. Allocated memory is still 77.6MB. Free memory was 37.9MB in the beginning and 35.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,464 INFO L158 Benchmark]: Boogie Preprocessor took 47.77ms. Allocated memory is still 77.6MB. Free memory was 35.2MB in the beginning and 54.9MB in the end (delta: -19.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,464 INFO L158 Benchmark]: RCFGBuilder took 636.95ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 54.9MB in the beginning and 67.9MB in the end (delta: -13.0MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,464 INFO L158 Benchmark]: TraceAbstraction took 5478.42ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 67.2MB in the beginning and 146.2MB in the end (delta: -78.9MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,466 INFO L158 Benchmark]: Witness Printer took 2.61ms. Allocated memory is still 197.1MB. Free memory was 146.2MB in the beginning and 145.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:04:39,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 37.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.37ms. Allocated memory is still 77.6MB. Free memory was 44.5MB in the beginning and 37.9MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.03ms. Allocated memory is still 77.6MB. Free memory was 37.9MB in the beginning and 35.5MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.77ms. Allocated memory is still 77.6MB. Free memory was 35.2MB in the beginning and 54.9MB in the end (delta: -19.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * RCFGBuilder took 636.95ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 54.9MB in the beginning and 67.9MB in the end (delta: -13.0MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5478.42ms. Allocated memory was 94.4MB in the beginning and 197.1MB in the end (delta: 102.8MB). Free memory was 67.2MB in the beginning and 146.2MB in the end (delta: -78.9MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. * Witness Printer took 2.61ms. Allocated memory is still 197.1MB. Free memory was 146.2MB in the beginning and 145.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L721] 0 int z = 0; [L722] 0 _Bool z$flush_delayed; [L723] 0 int z$mem_tmp; [L724] 0 _Bool z$r_buff0_thd0; [L725] 0 _Bool z$r_buff0_thd1; [L726] 0 _Bool z$r_buff0_thd2; [L727] 0 _Bool z$r_buff0_thd3; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L730] 0 _Bool z$r_buff1_thd2; [L731] 0 _Bool z$r_buff1_thd3; [L732] 0 _Bool z$read_delayed; [L733] 0 int *z$read_delayed_var; [L734] 0 int z$w_buff0; [L735] 0 _Bool z$w_buff0_used; [L736] 0 int z$w_buff1; [L737] 0 _Bool z$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L833] 0 pthread_t t2281; [L834] FCALL, FORK 0 pthread_create(&t2281, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2281=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L743] 1 z$w_buff1 = z$w_buff0 [L744] 1 z$w_buff0 = 1 [L745] 1 z$w_buff1_used = z$w_buff0_used [L746] 1 z$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L748] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L749] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L750] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L751] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L752] 1 z$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L835] 0 pthread_t t2282; [L836] FCALL, FORK 0 pthread_create(&t2282, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2281=0, t2282=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L755] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L772] 2 x = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L837] 0 pthread_t t2283; [L838] FCALL, FORK 0 pthread_create(&t2283, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2281=0, t2282=1, t2283=2, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L775] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L778] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L779] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L780] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L781] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L782] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L792] 3 __unbuffered_p2_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L795] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L796] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L797] 3 z$flush_delayed = weak$$choice2 [L798] 3 z$mem_tmp = z [L799] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L800] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L801] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L802] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L803] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L804] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L805] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L806] 3 __unbuffered_p2_EBX = z [L807] 3 z = z$flush_delayed ? z$mem_tmp : z [L808] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L758] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L759] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L760] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L761] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L762] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L811] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L812] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L813] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L814] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L815] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L818] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L840] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2281=0, t2282=1, t2283=2, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L842] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L842] RET 0 assume_abort_if_not(main$tmp_guard0) [L844] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L845] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L846] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L847] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L848] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2281=0, t2282=1, t2283=2, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L851] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2281=0, t2282=1, t2283=2, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L853] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 831]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 838]: 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: 836]: 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 7 procedures, 68 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 327 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 307 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 950 IncrementalHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 6 mSDtfsCounter, 950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 658 SizeOfPredicates, 13 NumberOfNonLiveVariables, 862 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 19:04:39,490 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