./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:07:43,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:07:43,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:07:43,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:07:43,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:07:43,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:07:43,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:07:43,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:07:43,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:07:43,344 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:07:43,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:07:43,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:07:43,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:07:43,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:07:43,347 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:07:43,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:07:43,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:07:43,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:07:43,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:07:43,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:07:43,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:07:43,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:07:43,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:07:43,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:07:43,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:07:43,354 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:07:43,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:07:43,354 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:07:43,354 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:07:43,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:07:43,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:07:43,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:07:43,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:07:43,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:07:43,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:07:43,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:07:43,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:07:43,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:07:43,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:07:43,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:07:43,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:07:43,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:07:43,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2024-11-10 10:07:43,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:07:43,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:07:43,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:07:43,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:07:43,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:07:43,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2024-11-10 10:07:44,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:07:45,136 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:07:45,136 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2024-11-10 10:07:45,157 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/933417da9/1c2f45546629498b930199019464d3ba/FLAG03636a99b [2024-11-10 10:07:45,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/933417da9/1c2f45546629498b930199019464d3ba [2024-11-10 10:07:45,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:07:45,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:07:45,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:07:45,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:07:45,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:07:45,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:07:45" (1/1) ... [2024-11-10 10:07:45,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e107f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:45, skipping insertion in model container [2024-11-10 10:07:45,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:07:45" (1/1) ... [2024-11-10 10:07:45,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:07:45,881 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2024-11-10 10:07:45,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:07:45,925 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:07:45,969 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2024-11-10 10:07:45,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:07:46,026 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:07:46,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46 WrapperNode [2024-11-10 10:07:46,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:07:46,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:07:46,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:07:46,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:07:46,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,072 INFO L138 Inliner]: procedures = 323, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-10 10:07:46,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:07:46,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:07:46,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:07:46,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:07:46,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,097 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-10 10:07:46,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,103 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:07:46,108 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:07:46,108 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:07:46,109 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:07:46,109 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (1/1) ... [2024-11-10 10:07:46,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:07:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:07:46,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:07:46,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:07:46,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:07:46,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:07:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:07:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:07:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-11-10 10:07:46,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-11-10 10:07:46,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 10:07:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 10:07:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 10:07:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 10:07:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:07:46,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:07:46,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:07:46,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:07:46,202 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:07:46,333 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:07:46,335 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:07:46,462 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:07:46,462 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:07:46,540 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:07:46,540 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:07:46,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:07:46 BoogieIcfgContainer [2024-11-10 10:07:46,541 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:07:46,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:07:46,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:07:46,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:07:46,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:07:45" (1/3) ... [2024-11-10 10:07:46,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fa237e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:07:46, skipping insertion in model container [2024-11-10 10:07:46,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:07:46" (2/3) ... [2024-11-10 10:07:46,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fa237e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:07:46, skipping insertion in model container [2024-11-10 10:07:46,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:07:46" (3/3) ... [2024-11-10 10:07:46,548 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2024-11-10 10:07:46,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:07:46,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:07:46,568 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:07:46,631 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-11-10 10:07:46,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 74 transitions, 245 flow [2024-11-10 10:07:46,689 INFO L124 PetriNetUnfolderBase]: 6/46 cut-off events. [2024-11-10 10:07:46,690 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 10:07:46,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 46 events. 6/46 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 57. Up to 3 conditions per place. [2024-11-10 10:07:46,696 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 74 transitions, 245 flow [2024-11-10 10:07:46,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 43 transitions, 137 flow [2024-11-10 10:07:46,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:07:46,710 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=LoopHeads, 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;@1504a8dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:07:46,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-10 10:07:46,723 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:07:46,723 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2024-11-10 10:07:46,723 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 10:07:46,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:07:46,724 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:07:46,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2024-11-10 10:07:46,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:07:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash 566088753, now seen corresponding path program 1 times [2024-11-10 10:07:46,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:07:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287675946] [2024-11-10 10:07:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:07:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:07:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:07:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:07:47,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:07:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287675946] [2024-11-10 10:07:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287675946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:07:47,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:07:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:07:47,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287604564] [2024-11-10 10:07:47,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:07:47,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:07:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:07:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:07:47,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:07:47,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 76 [2024-11-10 10:07:47,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:07:47,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:07:47,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 76 [2024-11-10 10:07:47,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:07:47,795 INFO L124 PetriNetUnfolderBase]: 2352/3341 cut-off events. [2024-11-10 10:07:47,796 INFO L125 PetriNetUnfolderBase]: For 336/336 co-relation queries the response was YES. [2024-11-10 10:07:47,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 3341 events. 2352/3341 cut-off events. For 336/336 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 15266 event pairs, 1026 based on Foata normal form. 1/3142 useless extension candidates. Maximal degree in co-relation 7146. Up to 2111 conditions per place. [2024-11-10 10:07:47,817 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 53 selfloop transitions, 4 changer transitions 5/67 dead transitions. [2024-11-10 10:07:47,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 67 transitions, 342 flow [2024-11-10 10:07:47,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:07:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:07:47,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-10 10:07:47,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40460526315789475 [2024-11-10 10:07:47,830 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 137 flow. Second operand 4 states and 123 transitions. [2024-11-10 10:07:47,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 67 transitions, 342 flow [2024-11-10 10:07:47,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-10 10:07:47,843 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 131 flow [2024-11-10 10:07:47,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2024-11-10 10:07:47,849 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -7 predicate places. [2024-11-10 10:07:47,850 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 131 flow [2024-11-10 10:07:47,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:07:47,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:07:47,851 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:07:47,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:07:47,851 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2024-11-10 10:07:47,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:07:47,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1737127829, now seen corresponding path program 2 times [2024-11-10 10:07:47,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:07:47,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751869013] [2024-11-10 10:07:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:07:47,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:07:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:07:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:07:48,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:07:48,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751869013] [2024-11-10 10:07:48,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751869013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:07:48,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:07:48,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:07:48,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49468705] [2024-11-10 10:07:48,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:07:48,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:07:48,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:07:48,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:07:48,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:07:48,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 76 [2024-11-10 10:07:48,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:07:48,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:07:48,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 76 [2024-11-10 10:07:48,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:07:48,371 INFO L124 PetriNetUnfolderBase]: 2352/3336 cut-off events. [2024-11-10 10:07:48,371 INFO L125 PetriNetUnfolderBase]: For 948/948 co-relation queries the response was YES. [2024-11-10 10:07:48,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7959 conditions, 3336 events. 2352/3336 cut-off events. For 948/948 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 15111 event pairs, 737 based on Foata normal form. 1/3151 useless extension candidates. Maximal degree in co-relation 7954. Up to 2056 conditions per place. [2024-11-10 10:07:48,379 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2024-11-10 10:07:48,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 70 transitions, 330 flow [2024-11-10 10:07:48,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:07:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:07:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-10 10:07:48,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40789473684210525 [2024-11-10 10:07:48,381 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 131 flow. Second operand 4 states and 124 transitions. [2024-11-10 10:07:48,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 70 transitions, 330 flow [2024-11-10 10:07:48,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 70 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 10:07:48,387 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-11-10 10:07:48,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-11-10 10:07:48,388 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -8 predicate places. [2024-11-10 10:07:48,388 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-11-10 10:07:48,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:07:48,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-10 10:07:48,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2024-11-10 10:07:48,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2024-11-10 10:07:48,392 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2024-11-10 10:07:48,392 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2024-11-10 10:07:48,393 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2024-11-10 10:07:48,393 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-10 10:07:48,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-11-10 10:07:48,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2024-11-10 10:07:48,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2024-11-10 10:07:48,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2024-11-10 10:07:48,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2024-11-10 10:07:48,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:07:48,394 INFO L407 BasicCegarLoop]: Path program histogram: [2] [2024-11-10 10:07:48,399 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:07:48,399 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:07:48,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:07:48 BasicIcfg [2024-11-10 10:07:48,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:07:48,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:07:48,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:07:48,407 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:07:48,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:07:46" (3/4) ... [2024-11-10 10:07:48,410 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:07:48,413 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread0 [2024-11-10 10:07:48,416 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 10:07:48,416 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 10:07:48,417 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-10 10:07:48,420 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-10 10:07:48,421 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-10 10:07:48,421 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 10:07:48,421 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 10:07:48,494 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:07:48,495 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:07:48,497 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:07:48,498 INFO L158 Benchmark]: Toolchain (without parser) took 3016.59ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 61.0MB in the beginning and 55.0MB in the end (delta: 6.1MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,498 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:07:48,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.52ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 60.9MB in the beginning and 145.0MB in the end (delta: -84.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.16ms. Allocated memory is still 205.5MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,499 INFO L158 Benchmark]: Boogie Preprocessor took 34.13ms. Allocated memory is still 205.5MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,499 INFO L158 Benchmark]: IcfgBuilder took 432.56ms. Allocated memory is still 205.5MB. Free memory was 139.8MB in the beginning and 116.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,499 INFO L158 Benchmark]: TraceAbstraction took 1863.41ms. Allocated memory is still 205.5MB. Free memory was 115.7MB in the beginning and 59.2MB in the end (delta: 56.5MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,499 INFO L158 Benchmark]: Witness Printer took 90.27ms. Allocated memory is still 205.5MB. Free memory was 59.2MB in the beginning and 55.0MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:07:48,500 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.52ms. Allocated memory was 134.2MB in the beginning and 205.5MB in the end (delta: 71.3MB). Free memory was 60.9MB in the beginning and 145.0MB in the end (delta: -84.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.16ms. Allocated memory is still 205.5MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.13ms. Allocated memory is still 205.5MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 432.56ms. Allocated memory is still 205.5MB. Free memory was 139.8MB in the beginning and 116.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1863.41ms. Allocated memory is still 205.5MB. Free memory was 115.7MB in the beginning and 59.2MB in the end (delta: 56.5MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Witness Printer took 90.27ms. Allocated memory is still 205.5MB. Free memory was 59.2MB in the beginning and 55.0MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1123]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 87 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 297 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 297 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 10:07:48,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE