./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 42d87675 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-25 02:28:12,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-25 02:28:12,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-25 02:28:12,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-25 02:28:12,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-25 02:28:12,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-25 02:28:12,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-25 02:28:12,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-25 02:28:12,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-25 02:28:12,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-25 02:28:12,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-25 02:28:12,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-25 02:28:12,832 INFO L153 SettingsManager]: * Use SBE=true [2025-04-25 02:28:12,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-25 02:28:12,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-25 02:28:12,832 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-25 02:28:12,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-25 02:28:12,832 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-25 02:28:12,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 02:28:12,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 02:28:12,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 02:28:12,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-25 02:28:12,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-25 02:28:12,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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 -> GemCutter 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 -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-04-25 02:28:13,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-25 02:28:13,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-25 02:28:13,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-25 02:28:13,050 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-25 02:28:13,050 INFO L274 PluginConnector]: CDTParser initialized [2025-04-25 02:28:13,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-04-25 02:28:14,388 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/628997c89/c42c32a4105441369a1deac91c1a4553/FLAGcae8da4f9 [2025-04-25 02:28:14,709 INFO L389 CDTParser]: Found 1 translation units. [2025-04-25 02:28:14,709 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-04-25 02:28:14,733 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/628997c89/c42c32a4105441369a1deac91c1a4553/FLAGcae8da4f9 [2025-04-25 02:28:15,394 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/628997c89/c42c32a4105441369a1deac91c1a4553 [2025-04-25 02:28:15,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-25 02:28:15,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-25 02:28:15,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-25 02:28:15,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-25 02:28:15,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-25 02:28:15,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713bf53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15, skipping insertion in model container [2025-04-25 02:28:15,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-25 02:28:15,595 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2025-04-25 02:28:15,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 02:28:15,768 INFO L200 MainTranslator]: Completed pre-run [2025-04-25 02:28:15,784 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2025-04-25 02:28:15,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-25 02:28:15,862 INFO L204 MainTranslator]: Completed translation [2025-04-25 02:28:15,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15 WrapperNode [2025-04-25 02:28:15,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-25 02:28:15,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-25 02:28:15,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-25 02:28:15,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-25 02:28:15,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,914 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2025-04-25 02:28:15,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-25 02:28:15,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-25 02:28:15,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-25 02:28:15,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-25 02:28:15,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,932 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-25 02:28:15,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-25 02:28:15,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-25 02:28:15,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-25 02:28:15,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (1/1) ... [2025-04-25 02:28:15,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-25 02:28:15,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 02:28:15,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-25 02:28:15,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-25 02:28:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-25 02:28:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-25 02:28:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-25 02:28:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-25 02:28:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-25 02:28:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-25 02:28:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-25 02:28:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-25 02:28:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-25 02:28:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-25 02:28:16,005 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-25 02:28:16,121 INFO L234 CfgBuilder]: Building ICFG [2025-04-25 02:28:16,122 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-25 02:28:16,451 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-25 02:28:16,451 INFO L283 CfgBuilder]: Performing block encoding [2025-04-25 02:28:16,659 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-25 02:28:16,660 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-25 02:28:16,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 02:28:16 BoogieIcfgContainer [2025-04-25 02:28:16,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-25 02:28:16,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-25 02:28:16,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-25 02:28:16,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-25 02:28:16,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.04 02:28:15" (1/3) ... [2025-04-25 02:28:16,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0c40e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 02:28:16, skipping insertion in model container [2025-04-25 02:28:16,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.04 02:28:15" (2/3) ... [2025-04-25 02:28:16,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0c40e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.04 02:28:16, skipping insertion in model container [2025-04-25 02:28:16,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 02:28:16" (3/3) ... [2025-04-25 02:28:16,668 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2025-04-25 02:28:16,677 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-25 02:28:16,679 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi003_tso.i that has 3 procedures, 33 locations, 31 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-25 02:28:16,679 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-25 02:28:16,720 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-25 02:28:16,751 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 02:28:16,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-25 02:28:16,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-25 02:28:16,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-25 02:28:16,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-25 02:28:16,814 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 02:28:16,820 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2025-04-25 02:28:16,826 INFO L340 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=PARTIAL_ORDER_FA, 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;@b8ef1c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 02:28:16,827 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-25 02:28:16,877 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-25 02:28:16,880 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 02:28:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1718409122, now seen corresponding path program 1 times [2025-04-25 02:28:16,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 02:28:16,886 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535381427] [2025-04-25 02:28:16,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 02:28:16,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 02:28:16,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-25 02:28:16,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-25 02:28:16,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 02:28:16,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 02:28:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 02:28:17,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 02:28:17,224 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535381427] [2025-04-25 02:28:17,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535381427] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 02:28:17,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 02:28:17,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-25 02:28:17,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696027125] [2025-04-25 02:28:17,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 02:28:17,227 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 02:28:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 02:28:17,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 02:28:17,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 02:28:17,239 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:17,240 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 02:28:17,240 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-04-25 02:28:17,240 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:17,770 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:17,772 INFO L790 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-25 02:28:17,773 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-25 02:28:17,777 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-25 02:28:17,781 INFO L320 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE (1/2) [2025-04-25 02:28:17,784 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 02:28:17,785 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-25 02:28:17,786 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-25 02:28:17,786 INFO L340 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=PARTIAL_ORDER_FA, 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;@b8ef1c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-25 02:28:17,786 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-25 02:28:17,792 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 02:28:17,794 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 02:28:17,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1973324206, now seen corresponding path program 1 times [2025-04-25 02:28:17,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 02:28:17,795 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360601999] [2025-04-25 02:28:17,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 02:28:17,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 02:28:17,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-25 02:28:17,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-25 02:28:17,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 02:28:17,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 02:28:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 02:28:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 02:28:18,201 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360601999] [2025-04-25 02:28:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360601999] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 02:28:18,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 02:28:18,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-25 02:28:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326252979] [2025-04-25 02:28:18,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 02:28:18,201 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-25 02:28:18,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 02:28:18,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-25 02:28:18,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-25 02:28:18,202 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:18,202 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 02:28:18,203 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2025-04-25 02:28:18,203 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:18,422 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:18,422 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-25 02:28:18,422 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 02:28:18,422 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 02:28:18,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2094499887, now seen corresponding path program 1 times [2025-04-25 02:28:18,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 02:28:18,422 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744282252] [2025-04-25 02:28:18,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 02:28:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 02:28:18,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-25 02:28:18,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-25 02:28:18,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 02:28:18,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 02:28:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 02:28:18,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 02:28:18,758 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744282252] [2025-04-25 02:28:18,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744282252] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 02:28:18,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 02:28:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-25 02:28:18,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254973218] [2025-04-25 02:28:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 02:28:18,759 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-25 02:28:18,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 02:28:18,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-25 02:28:18,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-25 02:28:18,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:18,760 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 02:28:18,760 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-04-25 02:28:18,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:18,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:18,863 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:18,865 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 02:28:18,866 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-25 02:28:18,866 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 02:28:18,866 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 02:28:18,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1222269108, now seen corresponding path program 1 times [2025-04-25 02:28:18,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 02:28:18,867 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848472465] [2025-04-25 02:28:18,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-25 02:28:18,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 02:28:18,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-25 02:28:19,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 02:28:19,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-25 02:28:19,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 02:28:19,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 02:28:19,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 02:28:19,329 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848472465] [2025-04-25 02:28:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848472465] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 02:28:19,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 02:28:19,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-25 02:28:19,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835940178] [2025-04-25 02:28:19,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 02:28:19,329 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-25 02:28:19,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 02:28:19,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-25 02:28:19,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-25 02:28:19,330 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:19,330 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 02:28:19,330 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2025-04-25 02:28:19,330 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:19,330 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 02:28:19,330 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:20,231 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:20,233 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 02:28:20,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 02:28:20,234 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-25 02:28:20,234 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-25 02:28:20,235 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-25 02:28:20,235 INFO L85 PathProgramCache]: Analyzing trace with hash -854147380, now seen corresponding path program 2 times [2025-04-25 02:28:20,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-25 02:28:20,235 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266345423] [2025-04-25 02:28:20,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-25 02:28:20,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-25 02:28:20,247 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-04-25 02:28:20,394 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-25 02:28:20,394 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-25 02:28:20,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-25 02:28:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-25 02:28:24,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-25 02:28:24,209 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266345423] [2025-04-25 02:28:24,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266345423] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-25 02:28:24,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-25 02:28:24,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-25 02:28:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994474236] [2025-04-25 02:28:24,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-25 02:28:24,210 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-25 02:28:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-25 02:28:24,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-25 02:28:24,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-04-25 02:28:24,210 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:24,210 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-25 02:28:24,211 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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) [2025-04-25 02:28:24,211 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:24,211 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-25 02:28:24,211 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-25 02:28:24,211 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-25 02:28:25,146 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-25 02:28:25,146 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-25 02:28:25,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-25 02:28:25,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-25 02:28:25,150 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-25 02:28:25,151 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-25 02:28:25,151 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-25 02:28:25,151 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-25 02:28:25,152 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-04-25 02:28:25,152 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (2/2) [2025-04-25 02:28:25,152 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-25 02:28:25,152 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-25 02:28:25,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-25 02:28:25,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.04 02:28:25 BasicIcfg [2025-04-25 02:28:25,164 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-25 02:28:25,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-25 02:28:25,164 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-25 02:28:25,164 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-25 02:28:25,165 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.04 02:28:16" (3/4) ... [2025-04-25 02:28:25,166 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-25 02:28:25,168 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-04-25 02:28:25,169 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-04-25 02:28:25,172 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2025-04-25 02:28:25,173 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-04-25 02:28:25,173 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-25 02:28:25,173 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-25 02:28:25,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-25 02:28:25,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-25 02:28:25,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-25 02:28:25,244 INFO L158 Benchmark]: Toolchain (without parser) took 9843.94ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 110.7MB in the beginning and 498.7MB in the end (delta: -388.0MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2025-04-25 02:28:25,244 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 02:28:25,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.14ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.0MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-25 02:28:25,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.34ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 79.7MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-25 02:28:25,245 INFO L158 Benchmark]: Boogie Preprocessor took 33.27ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 77.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 02:28:25,245 INFO L158 Benchmark]: RCFGBuilder took 712.20ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 77.4MB in the end (delta: -49.4kB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2025-04-25 02:28:25,245 INFO L158 Benchmark]: TraceAbstraction took 8501.89ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 76.7MB in the beginning and 504.7MB in the end (delta: -428.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2025-04-25 02:28:25,245 INFO L158 Benchmark]: Witness Printer took 79.14ms. Allocated memory is still 570.4MB. Free memory was 504.7MB in the beginning and 498.7MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-25 02:28:25,246 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.14ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.0MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.34ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 79.7MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.27ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 77.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 712.20ms. Allocated memory is still 142.6MB. Free memory was 77.4MB in the beginning and 77.4MB in the end (delta: -49.4kB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8501.89ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 76.7MB in the beginning and 504.7MB in the end (delta: -428.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 79.14ms. Allocated memory is still 570.4MB. Free memory was 504.7MB in the beginning and 498.7MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 309, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 309, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 309, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 309, independent: 278, independent conditional: 0, independent unconditional: 278, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 416, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 409, dependent conditional: 0, dependent unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 309, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 309, unknown conditional: 0, unknown unconditional: 309] , Statistics on independence cache: Total cache size (in pairs): 309, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 71, Number of trivial persistent sets: 43, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 309, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 309, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 309, independent: 280, independent conditional: 0, independent unconditional: 280, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 309, independent: 278, independent conditional: 0, independent unconditional: 278, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 416, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 409, dependent conditional: 0, dependent unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 309, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 309, unknown conditional: 0, unknown unconditional: 309] , Statistics on independence cache: Total cache size (in pairs): 309, Positive cache size: 280, Positive conditional cache size: 0, Positive unconditional cache size: 280, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 365, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 365, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 123, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 123, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 22, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 755, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 753, dependent conditional: 0, dependent unconditional: 753, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 365, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 123, unknown conditional: 0, unknown unconditional: 123] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 382, Positive conditional cache size: 0, Positive unconditional cache size: 382, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.8s, Number of persistent set computation: 134, Number of trivial persistent sets: 47, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 365, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 365, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 123, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 123, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 22, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 755, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 753, dependent conditional: 0, dependent unconditional: 753, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 365, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 123, unknown conditional: 0, unknown unconditional: 123] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 382, Positive conditional cache size: 0, Positive unconditional cache size: 382, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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 for errors in thread instance: P1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 53 locations, 51 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 53 locations, 51 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 2.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 0.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-25 02:28:25,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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