./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 01849734 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 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-0184973-m [2025-04-24 16:28:18,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 16:28:18,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 16:28:18,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 16:28:18,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 16:28:18,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 16:28:18,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 16:28:18,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 16:28:18,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 16:28:18,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 16:28:18,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 16:28:18,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 16:28:18,525 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 16:28:18,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 16:28:18,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 16:28:18,527 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:28:18,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:28:18,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:28:18,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 16:28:18,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 16:28:18,529 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 16:28:18,529 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 16:28:18,529 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 [2025-04-24 16:28:18,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 16:28:18,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 16:28:18,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 16:28:18,791 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 16:28:18,791 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 16:28:18,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-04-24 16:28:20,116 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f6d42dd47/86d8a567238c4d8496f4d8e0b4c13a81/FLAG6b674f65c [2025-04-24 16:28:20,368 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 16:28:20,369 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-04-24 16:28:20,384 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f6d42dd47/86d8a567238c4d8496f4d8e0b4c13a81/FLAG6b674f65c [2025-04-24 16:28:21,116 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f6d42dd47/86d8a567238c4d8496f4d8e0b4c13a81 [2025-04-24 16:28:21,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 16:28:21,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 16:28:21,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 16:28:21,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 16:28:21,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 16:28:21,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6940f762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21, skipping insertion in model container [2025-04-24 16:28:21,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 16:28:21,277 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] [2025-04-24 16:28:21,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:28:21,435 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 16:28:21,457 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] [2025-04-24 16:28:21,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:28:21,555 INFO L204 MainTranslator]: Completed translation [2025-04-24 16:28:21,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21 WrapperNode [2025-04-24 16:28:21,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 16:28:21,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 16:28:21,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 16:28:21,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 16:28:21,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,615 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2025-04-24 16:28:21,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 16:28:21,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 16:28:21,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 16:28:21,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 16:28:21,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 16:28:21,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 16:28:21,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 16:28:21,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 16:28:21,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (1/1) ... [2025-04-24 16:28:21,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:28:21,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:28:21,675 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) [2025-04-24 16:28:21,681 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 [2025-04-24 16:28:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 16:28:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 16:28:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-24 16:28:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-24 16:28:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-24 16:28:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-24 16:28:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 16:28:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 16:28:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 16:28:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 16:28:21,700 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 16:28:21,804 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 16:28:21,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 16:28:22,152 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 16:28:22,152 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 16:28:22,338 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 16:28:22,339 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 16:28:22,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:28:22 BoogieIcfgContainer [2025-04-24 16:28:22,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 16:28:22,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 16:28:22,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 16:28:22,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 16:28:22,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 04:28:21" (1/3) ... [2025-04-24 16:28:22,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332d448d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:28:22, skipping insertion in model container [2025-04-24 16:28:22,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:28:21" (2/3) ... [2025-04-24 16:28:22,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332d448d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:28:22, skipping insertion in model container [2025-04-24 16:28:22,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:28:22" (3/3) ... [2025-04-24 16:28:22,348 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2025-04-24 16:28:22,357 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 16:28:22,359 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. [2025-04-24 16:28:22,359 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 16:28:22,422 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 16:28:22,464 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:28:22,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 16:28:22,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:28:22,471 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) [2025-04-24 16:28:22,472 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 [2025-04-24 16:28:22,537 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:28:22,549 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2025-04-24 16:28:22,554 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;@1473ee6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:28:22,554 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 16:28:22,597 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:28:22,597 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:28:22,597 INFO L139 ounterexampleChecker]: Examining path program with hash 129673723, occurence #1 [2025-04-24 16:28:22,597 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:28:22,597 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:28:22,600 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:28:22,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1718409122, now seen corresponding path program 1 times [2025-04-24 16:28:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:28:22,608 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160150142] [2025-04-24 16:28:22,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:28:22,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:28:22,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-24 16:28:22,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-24 16:28:22,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:28:22,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:28:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:28:22,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:28:22,967 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160150142] [2025-04-24 16:28:22,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160150142] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:28:22,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:28:22,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-24 16:28:22,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157512063] [2025-04-24 16:28:22,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:28:22,974 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:28:22,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:28:22,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:28:22,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:28:22,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:22,999 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:28:23,000 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) [2025-04-24 16:28:23,000 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:23,961 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:23,963 INFO L790 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-24 16:28:23,964 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 16:28:23,968 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-24 16:28:23,970 INFO L320 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE (1/2) [2025-04-24 16:28:23,972 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:28:23,973 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:28:23,973 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 16:28:23,973 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;@1473ee6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:28:23,973 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 16:28:23,979 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:28:23,979 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:28:23,979 INFO L139 ounterexampleChecker]: Examining path program with hash 176615722, occurence #1 [2025-04-24 16:28:23,979 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:28:23,979 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:28:23,980 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:28:23,980 INFO L85 PathProgramCache]: Analyzing trace with hash -476202764, now seen corresponding path program 1 times [2025-04-24 16:28:23,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:28:23,980 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022107461] [2025-04-24 16:28:23,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:28:23,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:28:23,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-24 16:28:24,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-24 16:28:24,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:28:24,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:28:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:28:24,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:28:24,313 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022107461] [2025-04-24 16:28:24,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022107461] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:28:24,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:28:24,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 16:28:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976217237] [2025-04-24 16:28:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:28:24,314 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:28:24,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:28:24,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:28:24,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:28:24,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:24,315 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:28:24,316 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) [2025-04-24 16:28:24,316 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:24,559 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:24,560 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 16:28:24,560 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:28:24,560 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:28:24,560 INFO L139 ounterexampleChecker]: Examining path program with hash 1383416577, occurence #1 [2025-04-24 16:28:24,560 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:28:24,560 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:28:24,561 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:28:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash -276396908, now seen corresponding path program 1 times [2025-04-24 16:28:24,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:28:24,561 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030792186] [2025-04-24 16:28:24,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:28:24,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:28:24,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-24 16:28:24,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-24 16:28:24,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:28:24,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:28:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:28:24,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:28:24,969 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030792186] [2025-04-24 16:28:24,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030792186] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:28:24,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:28:24,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 16:28:24,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317995555] [2025-04-24 16:28:24,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:28:24,971 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 16:28:24,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:28:24,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 16:28:24,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-24 16:28:24,971 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:24,973 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:28:24,974 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-04-24 16:28:24,974 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:24,974 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:25,068 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:25,069 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:28:25,069 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 16:28:25,069 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:28:25,069 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:28:25,070 INFO L139 ounterexampleChecker]: Examining path program with hash 552767808, occurence #1 [2025-04-24 16:28:25,070 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:28:25,070 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:28:25,071 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:28:25,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1887241201, now seen corresponding path program 1 times [2025-04-24 16:28:25,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:28:25,071 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039189869] [2025-04-24 16:28:25,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:28:25,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:28:25,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-24 16:28:25,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-24 16:28:25,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:28:25,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:28:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:28:25,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:28:25,527 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039189869] [2025-04-24 16:28:25,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039189869] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:28:25,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:28:25,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-24 16:28:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782044024] [2025-04-24 16:28:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:28:25,528 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 16:28:25,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:28:25,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 16:28:25,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-24 16:28:25,528 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:25,528 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:28:25,528 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 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) [2025-04-24 16:28:25,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:25,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:28:25,528 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:26,293 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:26,293 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:28:26,293 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:28:26,294 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 16:28:26,294 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:28:26,294 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:28:26,294 INFO L139 ounterexampleChecker]: Examining path program with hash -1449330358, occurence #1 [2025-04-24 16:28:26,294 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:28:26,294 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:28:26,294 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:28:26,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1735164755, now seen corresponding path program 2 times [2025-04-24 16:28:26,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:28:26,295 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692309084] [2025-04-24 16:28:26,295 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 16:28:26,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:28:26,305 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-04-24 16:28:26,459 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-24 16:28:26,463 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 16:28:26,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:28:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:28:30,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:28:30,173 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692309084] [2025-04-24 16:28:30,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692309084] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:28:30,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:28:30,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-04-24 16:28:30,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264166528] [2025-04-24 16:28:30,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:28:30,173 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 16:28:30,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:28:30,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 16:28:30,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-04-24 16:28:30,175 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:30,175 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:28:30,176 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 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) [2025-04-24 16:28:30,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:30,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:28:30,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:28:30,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:28:31,149 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:28:31,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:28:31,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:28:31,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:28:31,150 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-24 16:28:31,150 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-24 16:28:31,150 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-24 16:28:31,151 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 16:28:31,152 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-04-24 16:28:31,152 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (2/2) [2025-04-24 16:28:31,152 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 16:28:31,153 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 16:28:31,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-24 16:28:31,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 04:28:31 BasicIcfg [2025-04-24 16:28:31,165 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 16:28:31,166 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 16:28:31,166 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 16:28:31,166 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 16:28:31,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:28:22" (3/4) ... [2025-04-24 16:28:31,168 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 16:28:31,171 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-04-24 16:28:31,171 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-04-24 16:28:31,176 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2025-04-24 16:28:31,177 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-04-24 16:28:31,177 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-24 16:28:31,177 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-24 16:28:31,237 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 16:28:31,237 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 16:28:31,237 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 16:28:31,239 INFO L158 Benchmark]: Toolchain (without parser) took 10118.58ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 90.5MB in the beginning and 444.8MB in the end (delta: -354.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2025-04-24 16:28:31,239 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:28:31,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.03ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 62.6MB in the end (delta: 27.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-24 16:28:31,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.54ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 58.9MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 16:28:31,240 INFO L158 Benchmark]: Boogie Preprocessor took 28.84ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 57.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:28:31,240 INFO L158 Benchmark]: RCFGBuilder took 694.06ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 41.8MB in the end (delta: 15.2MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2025-04-24 16:28:31,241 INFO L158 Benchmark]: TraceAbstraction took 8824.17ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 41.1MB in the beginning and 451.0MB in the end (delta: -410.0MB). Peak memory consumption was 261.3MB. Max. memory is 16.1GB. [2025-04-24 16:28:31,241 INFO L158 Benchmark]: Witness Printer took 71.39ms. Allocated memory is still 503.3MB. Free memory was 451.0MB in the beginning and 444.8MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 16:28:31,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.03ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 62.6MB in the end (delta: 27.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.54ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 58.9MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.84ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 57.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 694.06ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 41.8MB in the end (delta: 15.2MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8824.17ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 41.1MB in the beginning and 451.0MB in the end (delta: -410.0MB). Peak memory consumption was 261.3MB. Max. memory is 16.1GB. * Witness Printer took 71.39ms. Allocated memory is still 503.3MB. Free memory was 451.0MB in the beginning and 444.8MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. 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: 936, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 109, dependent conditional: 80, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 929, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 102, dependent conditional: 73, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 929, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 102, dependent conditional: 73, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1060, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 233, dependent conditional: 204, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1060, independent: 827, independent conditional: 58, independent unconditional: 769, dependent: 233, dependent conditional: 57, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1060, independent: 827, independent conditional: 58, independent unconditional: 769, dependent: 233, dependent conditional: 57, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 403, independent: 361, independent conditional: 6, independent unconditional: 355, dependent: 42, dependent conditional: 9, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 403, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 50, independent: 8, independent conditional: 6, independent unconditional: 2, dependent: 42, dependent conditional: 9, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 8, independent conditional: 6, independent unconditional: 2, dependent: 42, dependent conditional: 9, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 754, independent: 111, independent conditional: 105, independent unconditional: 6, dependent: 643, dependent conditional: 128, dependent unconditional: 515, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1060, independent: 466, independent conditional: 52, independent unconditional: 414, dependent: 191, dependent conditional: 48, dependent unconditional: 143, unknown: 403, unknown conditional: 15, unknown unconditional: 388] , Statistics on independence cache: Total cache size (in pairs): 403, Positive cache size: 361, Positive conditional cache size: 6, Positive unconditional cache size: 355, Negative cache size: 42, Negative conditional cache size: 9, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 561, Maximal queried relation: 1, Independence queries for same thread: 7, Persistent sets #1 benchmarks: Persistent set computation time: 0.6s, Number of persistent set computation: 131, Number of trivial persistent sets: 102, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 384, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 936, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 109, dependent conditional: 80, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 929, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 102, dependent conditional: 73, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 929, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 102, dependent conditional: 73, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1060, independent: 827, independent conditional: 472, independent unconditional: 355, dependent: 233, dependent conditional: 204, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1060, independent: 827, independent conditional: 58, independent unconditional: 769, dependent: 233, dependent conditional: 57, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1060, independent: 827, independent conditional: 58, independent unconditional: 769, dependent: 233, dependent conditional: 57, dependent unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 403, independent: 361, independent conditional: 6, independent unconditional: 355, dependent: 42, dependent conditional: 9, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 403, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 50, independent: 8, independent conditional: 6, independent unconditional: 2, dependent: 42, dependent conditional: 9, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 8, independent conditional: 6, independent unconditional: 2, dependent: 42, dependent conditional: 9, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 754, independent: 111, independent conditional: 105, independent unconditional: 6, dependent: 643, dependent conditional: 128, dependent unconditional: 515, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1060, independent: 466, independent conditional: 52, independent unconditional: 414, dependent: 191, dependent conditional: 48, dependent unconditional: 143, unknown: 403, unknown conditional: 15, unknown unconditional: 388] , Statistics on independence cache: Total cache size (in pairs): 403, Positive cache size: 361, Positive conditional cache size: 6, Positive unconditional cache size: 355, Negative cache size: 42, Negative conditional cache size: 9, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 561, Maximal queried relation: 1, Independence queries for same thread: 7 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1700, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 173, dependent conditional: 134, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1674, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 147, dependent conditional: 108, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1674, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 147, dependent conditional: 108, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2085, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 558, dependent conditional: 519, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2085, independent: 1527, independent conditional: 65, independent unconditional: 1462, dependent: 558, dependent conditional: 58, dependent unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2085, independent: 1527, independent conditional: 65, independent unconditional: 1462, dependent: 558, dependent conditional: 58, dependent unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 113, independent: 83, independent conditional: 8, independent unconditional: 75, dependent: 30, dependent conditional: 9, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 113, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 8, independent unconditional: 1, dependent: 30, dependent conditional: 9, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 8, independent unconditional: 1, dependent: 30, dependent conditional: 9, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 813, independent: 55, independent conditional: 54, independent unconditional: 1, dependent: 759, dependent conditional: 113, dependent unconditional: 646, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 2085, independent: 1444, independent conditional: 57, independent unconditional: 1387, dependent: 528, dependent conditional: 49, dependent unconditional: 479, unknown: 113, unknown conditional: 17, unknown unconditional: 96] , Statistics on independence cache: Total cache size (in pairs): 501, Positive cache size: 438, Positive conditional cache size: 8, Positive unconditional cache size: 430, Negative cache size: 63, Negative conditional cache size: 9, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1586, Maximal queried relation: 4, Independence queries for same thread: 26, Persistent sets #1 benchmarks: Persistent set computation time: 0.7s, Number of persistent set computation: 181, Number of trivial persistent sets: 109, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 376, independent: 337, independent conditional: 0, independent unconditional: 337, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1700, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 173, dependent conditional: 134, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1674, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 147, dependent conditional: 108, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1674, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 147, dependent conditional: 108, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2085, independent: 1527, independent conditional: 1190, independent unconditional: 337, dependent: 558, dependent conditional: 519, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2085, independent: 1527, independent conditional: 65, independent unconditional: 1462, dependent: 558, dependent conditional: 58, dependent unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2085, independent: 1527, independent conditional: 65, independent unconditional: 1462, dependent: 558, dependent conditional: 58, dependent unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 113, independent: 83, independent conditional: 8, independent unconditional: 75, dependent: 30, dependent conditional: 9, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 113, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 8, independent unconditional: 1, dependent: 30, dependent conditional: 9, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 9, independent conditional: 8, independent unconditional: 1, dependent: 30, dependent conditional: 9, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 813, independent: 55, independent conditional: 54, independent unconditional: 1, dependent: 759, dependent conditional: 113, dependent unconditional: 646, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 2085, independent: 1444, independent conditional: 57, independent unconditional: 1387, dependent: 528, dependent conditional: 49, dependent unconditional: 479, unknown: 113, unknown conditional: 17, unknown unconditional: 96] , Statistics on independence cache: Total cache size (in pairs): 501, Positive cache size: 438, Positive conditional cache size: 8, Positive unconditional cache size: 430, Negative cache size: 63, Negative conditional cache size: 9, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1586, Maximal queried relation: 4, Independence queries for same thread: 26 - 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.0s, 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, 0.3s 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - 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: 7.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 2.1s, 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, 4.5s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 692 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-24 16:28:31,260 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